Infrared (IR) Optical Filters

CRYSTECH is committed to manufacturing high-precision filters for solid-state laser systems. CRYSTECH can provide IPL filters, narrowband filters and broadband filters with precise wavelengths, high transmittance, good cut-off depth, and strong film layers. They are mainly used in medical beauty,... [See More]

• Application: Infrared; Visible
• Filter Shape: Rectangular

• Filter Type: Bandpass / Interference Filters
• Transmission Range: 300 to 1400

The FIR-ND03 Infrared Neutral Density Filter is a 1 inch (25.4 mm) diameter infrared neutral density filter with an optical density of 0.3, and ±3% transmittance tolerance. Optimized for 2 to 5 μm, this filter attenuates IR radiation from 2 to 14 μm. It is made from a germanium... [See More]

• Application: Infrared
• Filter Diameter, Side Length, or Rectangular Length: 1.5

• Filter Type: Neutral Density Filters
• Thickness: 1

Introducing our latest innovation in biochemical analysis technology - bandpass filters for biochemical analyzers. These filters are designed to improve the performance and accuracy of biochemistry analyzers, ensuring precise and reliable results for a variety of applications. These bandpass filters... [See More]

• Application: Infrared
• Filter Shape: Circular

• Filter Type: Bandpass / Interference Filters
• Surface Quality: 60-40 Scratch / Dig

Band pass filter plates are divided into short-pass and long-pass filters according to whether they transmit below or above the transition wavelength. The transition wavelength or cut-on/off wavelength is the wavelength at which the transmission is 50% of its peak value. [See More]

• Application: Infrared; Visible
• Filter Shape: Circular; Square

• Filter Type: Bandpass / Interference Filters; Long Pass Filters; Short Pass Filters
• Filter Diameter, Side Length, or Rectangular Length: 5 to 76.2

The capabilities of anti-reflection coatings for infrared optical interference filters range from single layers to advanced high efficiency multi-layer coatings. These coatings can be applied to windows, lenses or customer supplied substrates. For special applications, the coatings can be designed... [See More]

• Application: Infrared
• Filter Diameter, Side Length, or Rectangular Length: 7.5 to 100

• Filter Shape: Circular; Square; Rectangular
• Rectangular Width: 3.3 to 50

Different IR filters from Yutai Optics: a. optical glass with infrared coating. b. some color glass play an IR filter itself. c. Si, Ge, ZnSe, Sapphire, CaF2, quartz glass with infrared coating. The infrared band includes a wide range of wavelengths, from 780nm to 14um, which is divided into near... [See More]

• Application: Infrared
• Thickness: 0.5000 to 6

• Filter Type: Spectral Filters
• Surface Quality: 60-40 Scratch / Dig; 80-50 Scratch / Dig

The 1550nm bandpass filter for pulsed phase-shifted LiDAR rangefinders. This filter is designed to improve the performance and accuracy of lidar systems, making them an important component in a wide range of applications such as robotics, surveying and more. The 1550nm bandpass filter is built on... [See More]

• Application: Infrared
• Surface Quality: 60-40 Scratch / Dig

• Filter Type: Bandpass / Interference Filters

CeNing Optics provide a variety of colored glass filters covering the UV, visible and near-infrared wavelength regions. These filters serve as bandpass, broadband, or long-wave pass filters. [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Square; Rectangular

• Filter Type: Color Filters; Bandpass / Interference Filters; Broadband, Long-wave
• Filter Diameter, Side Length, or Rectangular Length: 5 to 76.2

Longpass Filters, also known as Longpass Edge Filters, are designed to transmit wavelengths greater than the cut-on wavelength of the filter. Longpass Filters are commonly used to isolate portions of the spectrum in a variety of industrial or life sciences applications including microscopy or... [See More]

• Application: Infrared; Visible; Ultraviolet
• Thickness: 0.5000 to 6

• Filter Type: Long Pass Filters
• Surface Quality: 60-40 Scratch / Dig; 80-50 Scratch / Dig

Shortpass Filters, also known as Shortpass Edge Filters, are used to transmit wavelengths shorter than the cut-off wavelength of the filter. Shortpass Filters are typically designed for a 0 ° Angle of Incidence, whereas Shortpass Dichroic Filters are designed for use at a 45 ° Angle of... [See More]

• Application: Infrared; Visible; Ultraviolet
• Thickness: 0.5000 to 6

• Filter Type: Short Pass Filters
• Surface Quality: 60-40 Scratch / Dig; 80-50 Scratch / Dig

Longpass filters designed on monocrystalline silicon substrates can achieve high transmittance in the range of 5.5um to 12um. What are the applications of silicon longpass filters?. Silicon longpass filters are mainly used in various infrared sensors. What is the transmittance of silicon longpass... [See More]

• Application: Infrared
• Thickness: 0.5000 to 6

• Filter Type: Long Pass Filters
• Surface Quality: 60-40 Scratch / Dig; 80-50 Scratch / Dig

At Thorlabs, we constantly reinforce our desire to serve at the pleasure of our customers. From this comes our desire to be connected to our industry in a way that far exceeds what would typically be expected of a vendor. Thorlabs lives this core principle by seeking to enhance, at every turn, the... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Square

• Filter Type: Color Filters
• Filter Diameter, Side Length, or Rectangular Length: 25

These types of filters are used to pass certain narrow wavelength band with high transmission and block the un-wanted light. The pass band can be very narrow such as 10nm or very wide depending on your specific application. Rejection band are deeply blocked with OD from 3 to 5 or above. Our line of... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular

• Filter Type: Bandpass / Interference Filters
• Filter Diameter, Side Length, or Rectangular Length: 5

Sapphire/ruby windows are applied as circuit substrates, epitaxial substrates, oriented substrates to GaN, GaAs. And other, sapphire possesses nice light transmission in0.20~5.50um wave band, and the infrared ray transmission is hardly influenced by temperature, so the optical components made of... [See More]

• Application: Infrared
• Filter Shape: Square

• Filter Type: Spectral Filters
• Transmission Range: 200 to 5500

Tower custom filters cover applications for biomedical bandpass, narrow bandpass, broad bandpass or long pass. Using ion-beam sputtering together with volume manufacturing methods, Tower is able to offer cost-effective solutions. [See More]

• Application: Infrared; Visible
• Filter Shape: Circular

• Filter Type: Bandpass / Interference Filters; Neutral Density Filters

Applications. Photographing Apparatus. Meter and Instrument. Optical Device. Medical Treatment Apparatus. Teaching Apparatus. UV Analyzer. Financial Equipment. Airport Lamps. Military Equipment. Technological Research Institute. Public Security Department [See More]

• Application: Infrared
• Thickness: 2

• Filter Type: Color Filters

Our Sputtered Single Band Laser filter sets employ the same high-transmission, high-durability coatings as our other ET sets. These sets reflect a single wavelength range and consist of longpass transmission dichroics, laser clean-up filters and laser emission filters. In addition, all laser sets... [See More]

• Application: Infrared
• Filter Set: Filter Set

• Filter Type: Bandpass / Interference Filters; Dichroic Filters; Short Pass Filters
• Filter Shape: Circular; Rectangular (optional feature)

Crystal etalon filter has consisting of plate with reflection coating on the both sides. We offer. high precision etalon filters based on the unique production of synthetic crystals, processing,. grinding, and film formation technologies. Features. • Wideband. • Highly precise FSR. •... [See More]

• Application: Infrared
• Filter Diameter, Side Length, or Rectangular Length: 1 to 10

• Filter Type: Bandpass / Interference Filters
• Rectangular Width: 1 to 10

Neutral density filters available in a wide range of optical densities and sizes. These filters are suitable for all general use. [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Square; Rectangular

• Filter Type: Neutral Density Filters
• Filter Diameter, Side Length, or Rectangular Length: 6.25 to 100

For your convenience and ecomony, Andover offers its metallic-coated infrared neutral density filters (IR ND filters) in sets. The cost is 10% lower than purchasing the individual parts, and they are supplied with a sturdy, hardwood storage case. Andover's IR ND filters exhibit outstanding spectral... [See More]

• Application: Infrared
• Filter Set: Filter Set

• Filter Type: Neutral Density Filters

A band pass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range, and it ’s used to selectively transmit a portion of the spectrum while rejecting all other wavelengths. 4.1 、What are bandpass filters?. A bandpass... [See More]

• Application: Infrared
• Filter Shape: Circular

• Filter Type: Bandpass / Interference Filters

Substrate: Material: UV fused silica or BK7. Clear Aperture: larger than 85%. Surface Quality (Scratch-Dig): 10-5 for regular plate windows. 60-40 for super thin plate windows. Surface Flatness: λ/10 @633nm for regular plate windows. λ/10 per mm @633nm for super thin plate windows. [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular

• Filter Type: Long Pass Filters; Short Pass Filters
• Filter Diameter, Side Length, or Rectangular Length: 25.4 to 50.8

Neutral density (ND) reflective type filters of 1 ’ ’ (25.4 mm) size with optical density that varies from 0.1 to 2.5 are available. Neutral density filters of Corning 7059 glass provide spectrally uniform attenuation from 400 nm to 2000 nm. The reflective coatings enable to reduce... [See More]

• Application: Infrared
• Filter Shape: Circular

• Filter Type: Neutral Density Filters
• Filter Diameter, Side Length, or Rectangular Length: 25.4

CILAS is involved in several space projects dedicated to earth observation [See More]

• Application: Infrared; Visible

• Transmission Range: 400 to 1000

Optical Mirrors are used for beam turning, interferometry, imaging, or illumination.Using polished glass or metal as the substrate, the light beam hits the surface to form mirror reflection.In order to obtain as much reflected light as possible, the substrate is often coated with a reflective... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular

• Filter Type: Long Pass Filters
• Filter Diameter, Side Length, or Rectangular Length: 2 to 200

PRODUCT DESCRIPTION. DSI has many years of experience producing narrow bandpass filters for use in the MWIR through LWIR. The coatings are. produced by either sputtering or evaporation. They are durable and can be used in a broad range of operating environments. APPLICATIONS. • Gas Detection. [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Square (optional feature)

• Filter Type: Color Filters; Bandpass / Interference Filters

For incidence angles of 45 °. Transmittance of IR light and reflection of visible light. High reflection in the visible range. No absorption of dielectric coating. Heat-resistant up to 300 °C. Thickness 1.1 mm. R ≥ 97 % for 425 - 600 nm. T = 50 % for 685 ± 15 nm. T ≥ 80 % for... [See More]

• Application: Infrared
• Filter Shape: Circular; Square; Rectangular

• Filter Type: Cold Mirrors
• Filter Diameter, Side Length, or Rectangular Length: 25 to 160

Selective Absorption Colored Optical Filter Glass. Ultra violet glass. Violet glass. Blue glass. Green glass. Golden(yellow) glass. Orange glass. Red glass. Infrared glass. Protective glass. Heat-absorbing glass. Multiband calibration glass. Sky-light glass. Rising color temperature conversion... [See More]

• Application: Infrared; Ultraviolet

• Filter Type: Color Filters; Long Pass Filters

Dichroic Filter coatings are designed to transmit one spectral region (passband) and reflect another (rejection band). The filter is a Short Wave Pass (SWP) if the passband is to the left of the transition slope, and a Long Wave Pass (LWP) if the passband is to the right of the slope. The advantages... [See More]

• Application: Infrared
• Filter Shape: Circular

• Filter Type: Color Filters; Dichroic Filters; Long Pass Filters; Short Pass Filters

Infrared filter blocks visible light and passes infrared light (included with infrared lights). Blue filter improves quality by reducing ambient light; it passes blue and infrared light. Green filter improves quality reducing ambient light; it passes green and infrared light. Red filter improves... [See More]

• Application: Infrared; Visible
• Filter Shape: Circular

• Filter Type: Color Filters

Ideal for NIR Wavelengths 700-1100nm. Optical Densities Ranging from 0.3 to 3.0. Our TECHSPEC ® Reflective NIR ND filters feature a spectrally flat region between 700 and 1100nm, outstanding parallelism, and exceptional surface characteristics. The combination of high tolerance and broadband... [See More]

• Application: Infrared
• Filter Shape: Circular

• Filter Type: Neutral Density Filters
• Filter Diameter, Side Length, or Rectangular Length: 12.5

1.25 " Baader UV+IR blocking filter, AR Coated, Optical Polish. [See More]

• Application: Infrared; Ultraviolet
• Filter Shape: Circular

• Filter Type: Color Filters

Extended Hot mirror filters transmit the visible spectrum and reflect the infrared at normal incidence. The average transmission is specified to be more than 85% from 425-675nm and average reflectance is more than 90% from 75o-1150nm and 80% from 1150-1600nm. Custom angles of incidence can be... [See More]

• Application: Infrared
• Filter Diameter, Side Length, or Rectangular Length: 24

• Filter Type: Hot Mirrors
• Thickness: 1.1 to 3.3

Interference filters are fabricated by a series of thin layers of various dielectric materials sandwiched by glsaa substrates. When multi wavelength light passes through the filter interference occurs due to the differences in refractive index, resulting in a very high transmittance for certain... [See More]

• Application: Infrared; Visible
• Filter Shape: Circular

• Filter Type: Bandpass / Interference Filters
• Filter Diameter, Side Length, or Rectangular Length: 25.4

At Thorlabs, we constantly reinforce our desire to serve at the pleasure of our customers. From this comes our desire to be connected to our industry in a way that far exceeds what would typically be expected of a vendor. Thorlabs lives this core principle by seeking to enhance, at every turn, the... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Rectangular

• Filter Type: Bandpass / Interference Filters
• Filter Diameter, Side Length, or Rectangular Length: 12.5 to 25.4

IPL filter is the key optical element for IPL (intense Pulsed Light) machine, which filters the UV wave and reserve the useful wave from 400nm to 1200nm for cosmetic laser, such as photrejuvenation, hair removal, vascular and acne treatment. The available wavelength are 550, 560, 570, 590, 615, 645,... [See More]

• Application: Infrared; Visible

• Surface Quality: 60-40 Scratch / Dig

Type: Excitation Filter. Coating: Sputter/Hard Coated. Wavelength (CWL): 1064nm. Bandwidth (FWHM): 10nm [See More]

• Application: Infrared
• Filter Shape: Circular; Rectangular (optional feature)

• Filter Type: Bandpass / Interference Filters
• Filter Diameter, Side Length, or Rectangular Length: 25

Rapid Spectral Solutions (RSS) has a listing of many bandpass filters with FWHM of 1.0 to 50 nm, with a feature of accepting light from a substantial field of view. Filters can be provided with Acceptance Angles up to +- 50 degrees from normal with little loss of normal performance. Getting them in... [See More]

• Application: Infrared; Visible
• Filter Shape: Circular; Square; Rectangular

• Filter Type: Bandpass / Interference Filters; Fused Silica Encapsulated
• Filter Diameter, Side Length, or Rectangular Length: 6.25 to 100

UV - VIS - NIR. Andover maintains a stock of high-quality surplus optical bandpass filters. These are primarily overruns of custom production lots, and exhibit the same high level of quality as all of our other products. Consequently, this can be a very economical alternative to purchasing a custom... [See More]

• Application: Infrared
• Filter Diameter, Side Length, or Rectangular Length: 25

• Filter Type: Bandpass / Interference Filters
• Thickness: 4

Longpass filters are ideal for a variety of applications, such as gas monitoring, temperature, sensing, thermal imaging and motion sensing, etc. Longpass filters block shorter wavelengths and transmit longer wavelengths. Blocking can be from reflectance, absorption or a combination. Transmission in... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular

• Filter Type: Long Pass Filters

Optical Mirrors are used for beam turning, interferometry, imaging, or illumination.Using polished glass or metal as the substrate, the light beam hits the surface to form mirror reflection.In order to obtain as much reflected light as possible, the substrate is often coated with a reflective... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular

• Filter Type: Bandpass / Interference Filters
• Filter Diameter, Side Length, or Rectangular Length: 2 to 200

Product Overview. Edge filters, also sometimes called dichroic filters, are coatings that include short wave pass and long wave pass filters. Specifically, these coatings transmit one range of wavelengths while blocking others. However, they are distinct from bandpass and notch filters in that they... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular

• Filter Type: Color Filters; Dichroic Filters; Long Pass Filters; Short Pass Filters
• Filter Diameter, Side Length, or Rectangular Length: 100

This covert filter design blocks energy with wavelengths shorter than 825nm. Typically used with infra-red cameras, scopes, and night vision goggles for surveillance, these filters enable infrared energy to be emitted from a variety of light sources while blocking visible energy, avoiding detection... [See More]

• Application: Infrared
• Filter Shape: Circular

• Filter Type: Bandpass / Interference Filters
• Filter Diameter, Side Length, or Rectangular Length: 24

At Thorlabs, we constantly reinforce our desire to serve at the pleasure of our customers. From this comes our desire to be connected to our industry in a way that far exceeds what would typically be expected of a vendor. Thorlabs lives this core principle by seeking to enhance, at every turn, the... [See More]

• Application: Infrared; Visible
• Filter Shape: Circular; Rectangular

• Filter Type: Color Filters; Hot Mirrors
• Filter Diameter, Side Length, or Rectangular Length: 25.4 to 50.8

Applications. Biomedical. Fluorescence Microscope. Laser System. Inspection Apparatus. Selective Interference. Hg Lamp Spectrum. Analyzing Spectrum. Imaging Optics Systems [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular

• Filter Type: Bandpass / Interference Filters
• Filter Diameter, Side Length, or Rectangular Length: 12 to 24

Type: Dichroic Beamsplitter. Coating: Sputter/Hard Coated. Available Thickness: [See More]

• Application: Infrared
• Filter Shape: Circular; Rectangular (optional feature)

• Filter Type: Dichroic Filters
• Filter Diameter, Side Length, or Rectangular Length: 25

Rapid Spectral Solutions (RSS) has a listing of many atomic and laser emission line filters with FWHM of less than 1.0 nm. Getting them in your hands in days to weeks rather than months, for the lowest possible cost, is a challenge we thrive on. [See More]

• Application: Infrared; Visible
• Filter Shape: Circular; Square; Rectangular

• Filter Type: Bandpass / Interference Filters; Fused Silica Encapsulated
• Filter Diameter, Side Length, or Rectangular Length: 6.25 to 100

Optical bandpass filters are designed to transmit a well-defined band of energy in the electromagnetic spectrum. Andover offers one of the most extensive listings of standard "off-the-shelf" interference filters in this industry. Wavelengths range from the ultraviolet through the near infrared and... [See More]

• Application: Infrared
• Filter Diameter, Side Length, or Rectangular Length: 12.5

• Filter Type: Bandpass / Interference Filters
• Thickness: 5.9

Optical Mirrors are used for beam turning, interferometry, imaging, or illumination.Using polished glass or metal as the substrate, the light beam hits the surface to form mirror reflection.In order to obtain as much reflected light as possible, the substrate is often coated with a reflective... [See More]

• Application: Infrared; Visible; Ultraviolet

• Filter Type: Optical Filter/Biochemical Filter

Product Overview. Notch filters block a range of wavelengths while transmitting both shorter and longer wavelengths outside of the blocked region. Thus, they provide the exact opposite functionality of a bandpass filter. One of the most common uses of DSI notch filters is in thermal infrared imaging... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular

• Filter Type: Color Filters; Notch Filter
• Rejection Range: 755 to 845

At Thorlabs, we constantly reinforce our desire to serve at the pleasure of our customers. From this comes our desire to be connected to our industry in a way that far exceeds what would typically be expected of a vendor. Thorlabs lives this core principle by seeking to enhance, at every turn, the... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Rectangular

• Filter Type: Long Pass Filters; Short Pass Filters
• Filter Diameter, Side Length, or Rectangular Length: 12.7 to 50.8

Type: Emission Filter. Coating: Sputter/Hard Coated [See More]

• Application: Infrared
• Filter Shape: Circular; Rectangular (optional feature)

• Filter Type: Bandpass / Interference Filters
• Filter Diameter, Side Length, or Rectangular Length: 25

Optical bandpass filters are designed to transmit a well-defined band of energy in the electromagnetic spectrum. Andover offers one of the most extensive listings of standard "off-the-shelf" interference filters in this industry. Wavelengths range from the ultraviolet through the near infrared and... [See More]

• Application: Infrared
• Filter Diameter, Side Length, or Rectangular Length: 12.5

• Filter Type: Bandpass / Interference Filters
• Thickness: 5.9

The Standard Window Glass is N-BK7 or Fused Silica, but when manufacture,Fused Silica is more easy to keep its flatness stability. UV Fused Silica is better for UV wavelength, high power laser, the UV tranmission can be 185nm. BK7 Glass is aways used for visible light and near infrared, it is more... [See More]

• Application: Infrared; Visible

• Filter Type: Optical Filter/Fluorescence Filter

At Thorlabs, we constantly reinforce our desire to serve at the pleasure of our customers. From this comes our desire to be connected to our industry in a way that far exceeds what would typically be expected of a vendor. Thorlabs lives this core principle by seeking to enhance, at every turn, the... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular

• Filter Type: Harmonic Filter
• Filter Diameter, Side Length, or Rectangular Length: 12.7 to 50.8

Chroma ’s 19000 series longpass filter sets consist of our affordably priced AT filters. Longpass filter sets are used in many clinical and industrial applications. These filter sets are similar to our 39000 series but use longpass emission filters instead of bandpass emission filters. This... [See More]

• Application: Infrared; Visible
• Filter Set: Filter Set

• Filter Type: Bandpass / Interference Filters; Long Pass Filters
• Filter Shape: Circular; Rectangular (optional feature)

Optical bandpass filters are designed to transmit a well-defined band of energy in the electromagnetic spectrum. Andover offers one of the most extensive listings of standard "off-the-shelf" interference filters in this industry. Wavelengths range from the ultraviolet through the near infrared and... [See More]

• Application: Infrared
• Filter Diameter, Side Length, or Rectangular Length: 12.5

• Filter Type: Bandpass / Interference Filters
• Thickness: 5.9

At Thorlabs, we constantly reinforce our desire to serve at the pleasure of our customers. From this comes our desire to be connected to our industry in a way that far exceeds what would typically be expected of a vendor. Thorlabs lives this core principle by seeking to enhance, at every turn, the... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Rectangular

• Filter Type: Hot Mirrors; Cold Mirrors
• Filter Diameter, Side Length, or Rectangular Length: 25.4 to 50.8

Chroma ’s 49000 series of single band sets features our highest throughput sputter coatings (ET) which achieve the highest transmission levels for interference filters. These filters have very steep transitions from peak transmission to high optical density to best exploit the spectral... [See More]

• Application: Infrared; Visible
• Filter Set: Filter Set

• Filter Type: Bandpass / Interference Filters; Long Pass Filters
• Filter Shape: Circular; Rectangular (optional feature)

Optical bandpass filters are designed to transmit a well-defined band of energy in the electromagnetic spectrum. Andover offers one of the most extensive listings of standard "off-the-shelf" interference filters in this industry. Wavelengths range from the ultraviolet through the near infrared and... [See More]

• Application: Infrared
• Filter Diameter, Side Length, or Rectangular Length: 12.5

• Filter Type: Bandpass / Interference Filters
• Thickness: 5.9

At Thorlabs, we constantly reinforce our desire to serve at the pleasure of our customers. From this comes our desire to be connected to our industry in a way that far exceeds what would typically be expected of a vendor. Thorlabs lives this core principle by seeking to enhance, at every turn, the... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Rectangular

• Filter Type: Long Pass Filters
• Filter Diameter, Side Length, or Rectangular Length: 12.7 to 50.8

This series contains the original filter sets designed for Quantum Dot Corp. These sets are specifically developed with wide excitation to capture all of the energy from UV to blue. Note: this wide excitation may not be necessary for all applications, and could result in increased autofluorescence. [See More]

• Application: Infrared; Visible
• Filter Set: Filter Set

• Filter Type: Bandpass / Interference Filters
• Filter Shape: Circular; Rectangular (optional feature)

Optical bandpass filters are designed to transmit a well-defined band of energy in the electromagnetic spectrum. Andover offers one of the most extensive listings of standard "off-the-shelf" interference filters in this industry. Wavelengths range from the ultraviolet through the near infrared and... [See More]

• Application: Infrared
• Filter Diameter, Side Length, or Rectangular Length: 12.5

• Filter Type: Bandpass / Interference Filters
• Thickness: 5.9

At Thorlabs, we constantly reinforce our desire to serve at the pleasure of our customers. From this comes our desire to be connected to our industry in a way that far exceeds what would typically be expected of a vendor. Thorlabs lives this core principle by seeking to enhance, at every turn, the... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Rectangular

• Filter Type: Circular Variable Filters; Neutral Density Filters
• Filter Diameter, Side Length, or Rectangular Length: 12.7 to 100

This series contains the original filter sets designed for Quantum Dot Corp. These sets are specifically developed with wide excitation to capture all of the energy from UV to blue. Note: this wide excitation may not be necessary for all applications, and could result in increased autofluorescence. [See More]

• Application: Infrared; Visible
• Filter Set: Filter Set

• Filter Type: Bandpass / Interference Filters
• Filter Shape: Circular; Rectangular (optional feature)

Bandpass type filter glasses are useful for enhancing the signal-to-noise ratio of illumination systems, transmit a broad band of energy while blocking the shorter and longer wavelengths. As with all of Andover's filter glasses, custom sizes are available upon request, and can also be mounted in... [See More]

• Application: Infrared

• Filter Type: Color Filters; Bandpass / Interference Filters

At Thorlabs, we constantly reinforce our desire to serve at the pleasure of our customers. From this comes our desire to be connected to our industry in a way that far exceeds what would typically be expected of a vendor. Thorlabs lives this core principle by seeking to enhance, at every turn, the... [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Rectangular

• Filter Type: Short Pass Filters
• Filter Diameter, Side Length, or Rectangular Length: 12.7 to 50.8

Chroma ’s 49000 series of single band sets features our highest throughput sputter coatings (ET) which achieve the highest transmission levels for interference filters. These filters have very steep transitions from peak transmission to high optical density to best exploit the spectral... [See More]

• Application: Infrared; Visible
• Filter Set: Filter Set

• Filter Type: Bandpass / Interference Filters
• Filter Shape: Circular; Rectangular (optional feature)

A Cold Mirror is the inverse of the Hot Mirror, it reflects the visible and transmits the infrared. Their coatings are all first-surface variety and like the hot mirrors, are also deposited onto low expansion material such as borosilicate glass. These mirrors are usually used at a 45 ° angle of... [See More]

• Application: Infrared; Visible
• Filter Diameter, Side Length, or Rectangular Length: 25

• Filter Type: Cold Mirrors
• Thickness: 3

At Thorlabs, we constantly reinforce our desire to serve at the pleasure of our customers. From this comes our desire to be connected to our industry in a way that far exceeds what would typically be expected of a vendor. Thorlabs lives this core principle by seeking to enhance, at every turn, the... [See More]

• Application: Infrared; Visible
• Filter Shape: Circular

• Filter Type: Spatial Filters
• Filter Diameter, Side Length, or Rectangular Length: 0.0250 to 2

Type: Dichroic Beamsplitter [See More]

• Application: Infrared
• Filter Shape: Circular; Rectangular (optional feature)

• Filter Type: Cold Mirrors
• Filter Diameter, Side Length, or Rectangular Length: 25

In order to make it simple for customers to custom-tailor an optical bandpass filter for their application, Andover offers a line of Semi-Custom bandpass filters. Their construction is similar to both the Standard Bandpass and High-Transmitting bandpass filter offerings. We offer a wide selection of... [See More]

• Application: Infrared
• Filter Diameter, Side Length, or Rectangular Length: 12.5

• Filter Type: Bandpass / Interference Filters
• Transmission Range: 1100 to 1300

Microscopes: Filter cube mounting options are available when adding to cart. Listed price applies to sizes up to either 25mm diameter or 26x38mm, in 1mm thickness, to fit standard microscope manufacturer filter cubes. [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Rectangular (optional feature)

• Filter Type: Hot Mirrors
• Filter Diameter, Side Length, or Rectangular Length: 25

Metallic-coated infrared neutral density filters (IR ND filters) obtain their optical density from a metal alloy coating on a substrate determined by the wavelength region of interest. Unlike the all-dielectric or absorption type, the metallic type ND filter employs a combination of absorption and... [See More]

• Application: Infrared
• Filter Diameter, Side Length, or Rectangular Length: 25

• Filter Type: Neutral Density Filters
• Thickness: 1

Microscopes: Filter cube mounting options are available when adding to cart. Listed price applies to sizes up to either 25mm diameter or 26x38mm, in 1mm thickness, to fit standard microscope manufacturer filter cubes. [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Rectangular (optional feature)

• Filter Type: Hot Mirrors
• Filter Diameter, Side Length, or Rectangular Length: 26 to 50

Andover offers a high-transmittance variant of its standard bandpass filter selection. By tailoring the blocking range to match the detector, we can provide the maximum possible throughput while maintaining good blocking to meet the customer ’s needs. Wavelengths include all popular laser,... [See More]

• Application: Infrared
• Filter Diameter, Side Length, or Rectangular Length: 25

• Filter Type: Bandpass / Interference Filters
• Thickness: 5.9

Coating: Sputter/Hard Coated [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Rectangular (optional feature)

• Filter Type: Neutral Density Filters
• Filter Diameter, Side Length, or Rectangular Length: 25

Long pass type filter glasses are useful for order sorting applications. They block the shorter wavelengths while transmitting the longer wavelengths. As with all of Andover's filter glasses, custom sizes are available upon request, and can also be mounted in threaded rings (click for sizes). All... [See More]

• Application: Infrared

• Filter Type: Color Filters; Long Pass Filters

Coating: Sputter/Hard Coated [See More]

• Application: Infrared; Visible; Ultraviolet
• Filter Shape: Circular; Rectangular (optional feature)

• Filter Type: Neutral Density Filters
• Filter Diameter, Side Length, or Rectangular Length: 25

J-band 1100nm to 1400nm. H-band 1500nm to 1800nm. K-band 2000nm to 2400nm. L-band 3000nm to 4000nm. M-band 4600nm to 5000nm. N-band 7500nm to 14500nm. Near-Infrared, Mid-Wave Infrared, and Far-Infrared Astronomy bands. J and H bands are popular for ground astronomy because these wavelengths pass... [See More]

• Application: Infrared