The 10BPF10-310 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 310 ± 2 nm and a Full Width Half Max of 11 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-320 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 320 ± 2 nm and a Full Width Half Max of 12 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-330 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 330 ±2 nm and a Full Width Half Max of 11 ±2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-340 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 340 ± 2 nm and a Full Width Half Max of 12 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-350 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 350 ± 2 nm and a Full Width Half Max of 11 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-360 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 360 ± 2 nm and a Full Width Half Max of 11 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-370 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 370 ± 2 nm and a Full Width Half Max of 12 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-380 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 380 ± 2 nm and a Full Width Half Max of 12 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-390 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 390 ± 2 nm and a Full Width Half Max of 12 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF70-400 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 400 ± 10 nm and a Full Width Half Max of 70 ± 30 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-400 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 400 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF25-400 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 400 ± 3.5 nm and a Full Width Half Max of 25 ± 3.5 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-410 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 410 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-420 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 420 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-430 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 430 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-440 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 440 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF70-450 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 450 ± 10 nm and a Full Width Half Max of 70 ± 30 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-450 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 450 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF25-450 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 450 ± 3.5 nm and a Full Width Half Max of 25 ± 3.5 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-460 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 460 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-470 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 470 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-480 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 480 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-490 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 490 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF70-500 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 500 ± 10 nm and a Full Width Half Max of 70 ± 30 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-500 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 500 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF25-500 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 500 ± 3.5 nm and a Full Width Half Max of 25 ± 3.5 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-510 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 510 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-520 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 520 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-530 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 530 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-540 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 540 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF70-550 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 550 ± 10 nm and a Full Width Half Max of 70 ± 30 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-550 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 550 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF25-550 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 550 ± 3.5 nm and a Full Width Half Max of 25 ± 3.5 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-560 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 560 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-570 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 570 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-580 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 580 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-590 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 590 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF70-600 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 600 ± 10 nm and a Full Width Half Max of 70 ± 30 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-600 Bandpass Filter is a 1 inch (25.4 mm) diameter bandpass filter with a center wavelength of 600 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF25-600 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 600 ± 3.5 nm and a Full Width Half Max of 25 ± 3.5 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-610 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 610 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-620 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 620 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-630 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 630 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-640 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 640 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF70-650 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 650 ± 10 nm and a Full Width Half Max of 70 ± 30 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-650 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 650 ± 2 nm and a Full Width Half Max of 10 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF25-650 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 650 ± 3.5 nm and a Full Width Half Max of 25 ± 3.5 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-660 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 660 ± 2 nm and a Full Width Half Max of 11 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-670 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 670 ± 2 nm and a Full Width Half Max of 11 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.

The 10BPF10-680 Bandpass Filter is a 1 inch (25.4 mm) diameter band pass filter with a center wavelength of 680 ± 2 nm and a Full Width Half Max of 11 ± 2 nm. Our Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required.

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.