BK7 Glass Optical Windows

N-BK7 is one of the most common glasses used to produce high-quality optical components, especially for the visible spectrum. It contains very few inclusions and is almost free of bubbles. It is a relatively hard material and has uniform transmission through-out the visible and near infrared spectra... [See More]

• Window Material: BK7 Glass
• Window Shape: Circular; Square; Rectangular

• Window Type: Plane
• Window Diameter, Side Length, or Rectangular Length: 10 to 50.8

CRYSTECH is dedicated to manufacturing high precision windows for solid-state laser systems. We have over 20 years of experience in windows manufacturing, design, and coating. We offer a wide range of windows with different materials and different wavelengths. CRYSTECH own the top coating expert... [See More]

• Window Material: BK7 Glass; Calcium Fluoride; UV Grade Fused Silica; MgF 2, CaF 2
• Windows Features: No Coating

• Window Shape: Circular; Square; Rectangular
• Surface Quality: 20-10 Scratch / Dig

The BK7 (K9) window with steps is a specially designed optical element that adds one or more step structures to a standard optical window. This design is often used to meet specific optical, mechanical or mounting requirements. What are the applications for BK7 (K9) windows with steps?. Laser... [See More]

• Window Material: BK7 Glass
• Surface Quality: 60-40 Scratch / Dig

• Parallelism or Wedge Angle: 180
• Surface Flatness: λ/10

The 05BW40-30AR.18 Laser-Grade Parallel Window is parallel to less than 30 arc sec for minimal transmitted beam deviation. This 1/2 inch (12.7 mm) diameter N-BK7 window is 6 mm thick. It has Newport's AR.18 broadband IR antireflection coating for a 1000 to 1550 nm wavelength range. For demanding... [See More]

• Window Material: BK7 Glass; Grade A N-BK7
• Thickness: 6

• Window Diameter, Side Length, or Rectangular Length: 12.7
• Wedged or Parallel?: Wedged

• Most sizes with ? /20 transmitted wavefront and 10-5 surface quality are available; • All kinds of coatings are available; • Custom designs for other sizes and coatings are also available upon request. [See More]

• Window Material: BK7 Glass
• Window Shape: Circular

• Window Type: Plane
• Window Diameter, Side Length, or Rectangular Length: 12.7

The 10BW40-30AR.18 Laser-Grade Parallel Window is parallel to less than 30 arc sec for minimal transmitted beam deviation. This 1 inch (25.4 mm) diameter N-BK7 window is 6 mm thick. It has Newport's AR.18 broadband IR antireflection coating for a 1000 to 1550 nm wavelength range. For demanding... [See More]

• Window Material: BK7 Glass; Grade A N-BK7
• Thickness: 6

• Window Diameter, Side Length, or Rectangular Length: 25.4
• Wedged or Parallel?: Wedged

• Most sizes ? /20 transmitted wavefront, 10-5 surface quality are available; • All kinds of coatings are available; • Custom designs for other sizes and coatings are also available upon request. [See More]

• Window Material: BK7 Glass
• Window Shape: Rectangular

• Window Type: Plane
• Window Diameter, Side Length, or Rectangular Length: 12.7

The 20BW40-30AR.18 Laser-Grade Parallel Window is parallel to less than 30 arc sec for minimal transmitted beam deviation. This 2 inch (50.8 mm) diameter N-BK7 window is 10 mm thick. It has Newport's AR.18 broadband IR antireflection coating for a 1000 to 1550 nm wavelength range. For demanding... [See More]

• Window Material: BK7 Glass; Grade A N-BK7
• Thickness: 10

• Window Diameter, Side Length, or Rectangular Length: 50.8
• Wedged or Parallel?: Wedged

• Most sizes ? /20 transmitted wavefront, 10-5 surface quality are available; • All kinds of coatings are available; • Custom designs for other sizes and coatings are also available upon request. [See More]

• Window Material: BK7 Glass
• Window Shape: Square

• Window Type: Plane
• Window Diameter, Side Length, or Rectangular Length: 12.7

Besides standard windows, Foctek offers all kinds of custom-made windows according to customers ’ requirement: Windows made from materials such as N-BK7, Fused Silica, Sapphire, CaF2, Silicon, Borofloat, Pyrex, or other optical glass supplied by Schott and Chinese CDGM are available upon... [See More]

• Window Material: BK7 Glass
• Window Diameter, Side Length, or Rectangular Length: 10 to 50.8

• Window Shape: Circular
• Thickness: 2 to 6.35

Substrate Material: UV fused silica, BK7. Clear Aperture: larger than central 85% of diameter. Surface Quality: 10-5 Scratch-Dig. Surface Flatness: λ/10 @633nm over clear aperture. Diameter tolerance: +0.000/-0.010" (+0.00/-0.25mm). Thickness tolerance: ±0.010" ( ±0.25mm). [See More]

• Window Material: BK7 Glass; UV Grade Fused Silica
• Window Shape: Circular

• Window Type: Plane
• Window Diameter, Side Length, or Rectangular Length: 12.7 to 203

Optical windows are made of optical grade glass with plane parallel surfaces. They are used to admit light into an optical system and to protect it from dirt and moisture. Windows made of BK7 material have high transmission in the visible spectral region, do not scratch easily, do not degrade under... [See More]

• Window Material: BK7 Glass
• Window Shape: Circular

• Window Type: Plane
• Window Diameter, Side Length, or Rectangular Length: 12.5

We offer two substrate materials, spanning a range of thermal expansion coefficients. For applications in which thermal shock is absent and thermal stability is not critical, BK7 glass is a suitable and inexpensive material. For applications requiring high thermal stability or involving severe... [See More]

• Window Material: BK7 Glass; UV Grade Fused Silica
• Window Diameter, Side Length, or Rectangular Length: 12.7 to 50.8

• Window Shape: Circular
• Thickness: 3 to 10

Optical windows are used to allow optical radiation to pass from one environment to another without allowing other elements of these environments to mix. And it does not change the wavelength distribution of the beam, the transmitted wave front, nor does it scatter any of the light out of the beam. [See More]

• Window Material: BK7 Glass

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]

• Window Material: BK7 Glass; Calcium Fluoride; Germanium; Sapphire; UV Grade Fused Silica; Zinc Selenide; Silicon, Barium Fluoride, Infrasil®
• Window Shape: Circular; Rectangular

• Window Type: Plane
• Window Diameter, Side Length, or Rectangular Length: 12.7 to 50.8

BK7 window is the most common type of window. It has good performance over visible and near infrared wavelength regions. At the same time, BK7 window is ideal for applications require minimal transmitted beam deviation. It is suitable for AR coating. [See More]

• Window Material: BK7 Glass
• Window Diameter, Side Length, or Rectangular Length: 2 to 350

• Window Shape: Circular
• Wedged or Parallel?: Parallel

BK7 window is the most common type of window. It has good performance over visible and near infrared wavelength regions. At the same time, BK7 window is ideal for applications require minimal transmitted beam deviation. It is suitable for AR coating. 7.1.What is BK7 window?. N-BK7 Windows are a... [See More]

• Window Material: BK7 Glass
• Window Diameter, Side Length, or Rectangular Length: 2 to 350

• Window Shape: Circular (optional feature); Square (optional feature); Rectangular (optional feature)
• Thickness: 1 to 50

Laser optics are used in laser instruments or laser applications, including beam control or material handling. In general, substrates require higher finish, better roughness, and laser damage thresholds for pulsed or continuous lasers, such as better finish than 20-10, Ra <1 nm and 3 kw. ICC has... [See More]

• Window Material: BK7 Glass; Silicon

• Surface Quality: 20-10 Scratch / Dig

Optical Windows are often used to create a physical barrier between two different environments – preventing two gases from mixing together, separating liquids from the air, keeping a sealed system in a vacuum. In many optical systems, a window is used to protect more expensive optical... [See More]

• Window Material: BK7 Glass; Calcium Fluoride; Germanium; Sapphire; UV Grade Fused Silica; Zinc Selenide; VUV MgF2; SUPRASIL 1; Silicon; Zinc Sulfide
• Window Shape: Circular; Square; Rectangular

• Window Type: Plane; Brewster
• Wedged or Parallel?: Parallel (optional feature); Wedged (optional feature)

Optical dome is a lens with two concentric sphere, They are mainly used for Bathyscaphe, Radiometer, Underwater Robot, Submarine.,Camera Image. In an ideal dome, the convex radius equals the sum of the dome thickness and the concave radius, resulting in a naturally strong shape that becomes harder... [See More]

• Window Material: BK7 Glass; Sapphire; UV Grade Fused Silica; Bk7 sapphire fused silica,ZnS2,CaF2,Si,Ge.
• Window Diameter, Side Length, or Rectangular Length: 2 to 800

• Window Shape: Circular
• Windows Features: Anti-Reflection Coating

Brewster Windows are windows designed for use at Brewster's angle (usually uncoated). This is the angle where only incident p-polarized light has 0% transmission loss. They are an economical option for coupling linearly polarized light into sealed optical systems and to select the polarization of... [See More]

• Window Material: BK7 Glass; UV Grade Fused Silica; FS
• Window Shape: Circular

• Window Type: Brewster
• Wedged or Parallel?: Wedged

Our BK7 windows are available with a high parallelism of 10 arc seconds, ideal for applications requiring minimal transmitted beam deviation. [See More]

• Window Material: BK7 Glass
• Window Diameter, Side Length, or Rectangular Length: 5 to 50

• Window Shape: Circular
• Thickness: 2 to 10

1/4 λ Surface Accuracy. Broadband Anti-Reflection Coating Options Available. Custom Coatings and Sizes Available for Volume OEM Quantities. Also Available with Laser-Line V-Coats. TECHSPEC ® 1/4 λ N-BK7 Precision Windows are ideally suited for industrial and low power laser... [See More]

• Window Material: BK7 Glass
• Window Shape: Circular

• Window Type: Plane
• Window Diameter, Side Length, or Rectangular Length: 10

Round Sapphire Windows are excellent at protecting delicate lasers, sensors, cameras, and other devices due to their superior strength and scratch resistance. Sapphire windows can also be used as viewports in high pressure or vacuum situations. Sapphire pressure windows can be made much thinner than... [See More]

• Window Material: BK7 Glass; Germanium; Sapphire; UV Grade Fused Silica; Quartz, Silicon, MgF2, CaF2
• Window Shape: Circular

• Window Type: Plane
• Window Diameter, Side Length, or Rectangular Length: 3 to 300

MOK optics produce extensive optical windows, which are made from different materials. H-K9L / N-BK7 window UV / IR fused silica window Laser optics Sapphire window Germanium window (AR coating+ DLC coating)CaF2 window MgF2 window Silicon window Special sizes, shapes and materials are available upon... [See More]

• Window Material: BK7 Glass; H-K9L
• Window Diameter, Side Length, or Rectangular Length: 3 to 200

• Window Shape: Circular (optional feature); Square (optional feature); Rectangular (optional feature)
• Parallelism or Wedge Angle: 0.5000

Elliptical flat mirrors bend light at precise angles with minimum wave distortion due to elongated major axis. Precision 45 degree elliptical flat mirrors are ideal for technical and astronomical applications. Bend light at precise angles with minimum wave distortion [See More]

• Window Material: BK7 Glass; UV Grade Fused Silica
• Window Diameter, Side Length, or Rectangular Length: 25 to 42.5

• Window Shape: Circular
• Thickness: 3 to 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]

• Window Material: BK7 Glass; UV Grade Fused Silica
• Window Shape: Circular

• Window Type: Plane
• Window Diameter, Side Length, or Rectangular Length: 25.4

1 、What are laser windows?. Laser Protect Windows(Laser protective glass, protective filters or welding protective windows) are used to save for the high cost of laser optics. 2 、What are laser windows used for?. These windows are normally used in applications like laser cutting, laser... [See More]

• Window Material: BK7 Glass; UV Grade Fused Silica; Zinc Selenide
• Window Diameter, Side Length, or Rectangular Length: 4 to 80

• Window Shape: Circular
• Wedged or Parallel?: Parallel

Laser Protect Windows(Laser protective glass, protective filters or welding protective windows) are used to save for the high cost of laser optics. 4.1 、What are laser windows used for?. These windows are normally used in applications like laser cutting, laser welding machine, they are used... [See More]

• Window Material: BK7 Glass; UV Grade Fused Silica; Zinc Selenide; BK7, Fused Silica, ZnSe...etc
• Window Diameter, Side Length, or Rectangular Length: 4 to 120

• Window Shape: Circular (optional feature)
• Wedged or Parallel?: Parallel

Intrinsic have very strong ability for the optical windows, we have three fabrication technique of pitch polishing, double side polishing and contact polishing to supply windows size from 1.2mm to 350mm with thickness from 0.12mm to 60mm, and the shape can be round, square, drilled, step, and... [See More]

• Window Material: BK7 Glass; Calcium Fluoride; Germanium; Sapphire; UV Grade Fused Silica; Zinc Selenide; ZnS, Silicon, BaF2, MgF2

• Window Shape: Circular; Square; Rectangular

The high-precision window is made of BK7 optical glass and UV fused quartz, the fused silica quartz window plate is suitable for high power laser that needs good thermal stability, and the window made of N-BK7 material is cheaper, which is suitable for laser applications that pay more attention to... [See More]

• Window Material: BK7 Glass; Sapphire; UV Grade Fused Silica; Bk7 sapphire fused silica,ZnS2,CaF2,Si,Ge.
• Window Diameter, Side Length, or Rectangular Length: 2 to 800

• Window Shape: Circular
• Windows Features: Anti-Reflection Coating

Large Wedge Windows greatly reduce or eliminate interference effects caused by multiple reflections between front and rear surfaces of Plane Windows. They are well suited for use as substrates for laser output couplers in which the reflection from the second surface must be completely eliminated... [See More]

• Window Material: BK7 Glass; UV Grade Fused Silica
• Wedged or Parallel?: Wedged

• Window Shape: Circular
• Parallelism or Wedge Angle: 5

The usage of flat windows allows optical radiation to pass from one environment to another, without mixing other components of these environments.. Considerations in selecting windows may include transmission, scattering, wavefront distortion and resistance to certain environments. The ideal window... [See More]

• Window Material: BK7 Glass; UV Grade Fused Silica
• Window Diameter, Side Length, or Rectangular Length: 20 to 50.8

• Window Shape: Rectangular
• Rectangular Width: 15 to 50.8

ICC has extensive experience in applying lenses to F-THETA, providing more than 3000 sets of lens sets each year. Covers wavelengths of 355/532/633/1064/2050 / 9.6um / 10.6um, etc. Materials can be BK7, quartz, calcium fluoride, sapphire, zinc selenide, ZK8 and other glass and crystal materials. ICC... [See More]

• Window Material: BK7 Glass; Calcium Fluoride; Sapphire; Zinc Selenide; ZK8

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]

• Window Material: BK7 Glass; Sapphire; UV Grade Fused Silica; Bk7 sapphire fused silica,ZnS2,CaF2,Si,Ge.
• Window Diameter, Side Length, or Rectangular Length: 2 to 800

• Window Shape: Circular
• Windows Features: Anti-Reflection Coating

Parallel Windows are similar to Plane Windows, but with parallel surfaces. These windows are well suited for applications in which angular deviation of the transmitted beam must be kept as small as possible. Misalignment errors are also minimized when the window is repeatedly inserted and removed. [See More]

• Window Material: BK7 Glass; Calcium Fluoride; Germanium; Sapphire; UV Grade Fused Silica; Zinc Selenide; FS, IR grade CaF2, MgF2, BaF2, ZnS, Si, Cleartran, Chalcogenide glass, Sapphire
• Wedged or Parallel?: Wedged

• Window Shape: Circular
• Parallelism or Wedge Angle: 5

The usage of flat windows allows optical radiation to pass from one environment to another, without mixing other components of these environments. Considerations in selecting windows may include transmission, scattering, wavefront distortion and resistance to certain environments. The ideal window... [See More]

• Window Material: BK7 Glass; UV Grade Fused Silica
• Window Diameter, Side Length, or Rectangular Length: 12.5 to 75

• Window Shape: Circular
• Thickness: 2 to 6.3

It refers to uncoated optical elements, including window, lens and prism, which are applied to laser. The main feature is that consistency of material is better and stress is lower .At the same time, the surface treatment of the lens must be proper. It has strict requirements for the S &D, RMS,... [See More]

• Window Material: BK7 Glass; Calcium Fluoride; Sapphire; UV Grade Fused Silica; Zinc Selenide; MgF2, Pyrex

Sapphire are ideal for demanding applications such as laser systems because of their extremely high surface hardness, high thermal conductivity, high dielectric constant and resistance to chemical acids and bases.Because the hardness of sapphire is second only to diamond, and its structural strength... [See More]

• Window Material: BK7 Glass; Sapphire; UV Grade Fused Silica; Bk7 sapphire fused silica,ZnS2,CaF2,Si,Ge.
• Window Diameter, Side Length, or Rectangular Length: 2 to 800

• Window Shape: Circular
• Windows Features: Anti-Reflection Coating

Plane Windows are used as substrates for a variety of applications, such as laser windows, output couplers, beamsplitters, beam combiners, mirrors, dichroic filters and plate polarizers. Considerations in selecting window substrates include transmission range, absorption coefficient, incident laser... [See More]

• Window Material: BK7 Glass; Calcium Fluoride; UV Grade Fused Silica; Fused Silica, MgF2, BaF2c
• Window Shape: Circular

• Window Type: Plane
• Wedged or Parallel?: Wedged

Calcium fluoride has a high transmittance from ultraviolet to mid-infrared (250nm~7um), so it is widely used in the manufacture of prisms, Windows and lenses, In some applications with a wide spectrum range, it can be used directly without coating film, Especially, it has low absorption and high... [See More]

• Window Material: BK7 Glass; Sapphire; UV Grade Fused Silica; Bk7 sapphire fused silica,ZnS2,CaF2,Si,Ge.
• Window Diameter, Side Length, or Rectangular Length: 1 to 1000

• Window Shape: Circular
• Windows Features: Anti-Reflection Coating

The high-precision window is made of BK7 optical glass and UV fused quartz, the fused silica quartz window plate is suitable for high power laser that needs good thermal stability, and the window made of N-BK7 material is cheaper, which is suitable for laser applications that pay more attention to... [See More]

• Window Material: BK7 Glass; UV Grade Fused Silica; BK7 K9 Fused Silica, Corning Fused Silica

• Windows Features: Anti-Reflection Coating

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]

• Window Material: BK7 Glass; Sapphire; UV Grade Fused Silica; Bk7 sapphire fused silica,ZnS2,CaF2,Si,Ge.
• Window Diameter, Side Length, or Rectangular Length: 0.1000 to 1000

• Window Shape: Circular
• Windows Features: Anti-Reflection Coating

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]

• Window Material: BK7 Glass; Sapphire; UV Grade Fused Silica; Bk7 sapphire fused silica,ZnS2,CaF2,Si,Ge.
• Window Diameter, Side Length, or Rectangular Length: 2 to 800

• Window Shape: Circular
• Windows Features: Anti-Reflection Coating

Sapphire Windows are ideal for demanding applications such as laser systems because of their extremely high surface hardness, high thermal conductivity, high dielectric constant and resistance to chemical acids and bases.Because the hardness of sapphire is second only to diamond, and its structural... [See More]

• Window Material: BK7 Glass; Sapphire; UV Grade Fused Silica; Bk7 sapphire fused silica,ZnS2,CaF2,Si,Ge.
• Window Diameter, Side Length, or Rectangular Length: 2 to 800

• Window Shape: Circular
• Windows Features: Anti-Reflection Coating

Calcium fluoride has a high transmittance from ultraviolet to mid-infrared (250nm~7um), so it is widely used in the manufacture of prisms, Windows and lenses, In some applications with a wide spectrum range, it can be used directly without coating film, Especially, it has low absorption and high... [See More]

• Window Material: BK7 Glass; Sapphire; UV Grade Fused Silica; Bk7 sapphire fused silica,ZnS2,CaF2,Si,Ge.
• Window Diameter, Side Length, or Rectangular Length: 1 to 1000

• Window Shape: Circular
• Windows Features: Anti-Reflection Coating