Knight Optical (UK) Ltd Datasheets for Optical Windows
Optical windows are used to isolate different physical environments while allowing light to pass relatively unimpeded.
Optical Windows: Learn more
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| Product Name | Notes |
|---|---|
| A dome is an optical window composed of two parallel curved surfaces. Domes are commonly used in defence applications and often in extreme environments such as submersible ROVs. For this... | |
| B270 or equivalent windows are cost-effective medium performance windows. B270 or equivalent glass works efficiently from 320nm though to 2600nm with an average transmission of 90% from 400nm to 2000nm... | |
| Barium Fluoride (BaF₂) is a crystalline compound of barium and fluoride used in optical applications in the NIR, VIS and MWIR spectrums. Barium Fluoride is resistant to high energy radiation,... | |
| Calcium Fluoride (CaF₂) is commonly used for optics looking at the IR and UV spectrums and has a very low change in refractive index with wavelength. It shares similar optical... | |
| Germanium (Ge) is a relatively hard, high-density, IR transmitting material that blocks UV and VIS wavelengths but allows IR from 2µm. Germanium has the highest refractive index of commonly available... | |
| Knight Optical's stock range of Infrared fused quartz windows are made from JGS3 material. The IR fused quartz is manufactured by the fusion of naturally occurring crystal quartz in an... | |
| Knight Optical's stock range of UV fused silica windows are made from Corning 7980 grade 2G or equivilent of Spectrosil B. UV grade fused silica windows have excellent UV transmission... | |
| Magnesium Fluoride (MgF2) is a colourless, hard and durable material and is birefringent. The material's durability and resistance to mechanical and thermal shock enable it to be used... | |
| Potassium Bromide (KBr) is a crystalline compound of potassium and bromide with a rock-salt type structure. It is used in optical applications in the UV, Visible, MWIR, and LWIR waveband... | |
| Quartz (SiO2) is a birefringent material commonly used in the manufacture of polarizers (such as wave plates) and windows. The material’s birefringent properties mean it has two refractive... | |
| Quartz material is stronger than glass, can be used at temperatures up to 1050°C and has a high average transmission of over 80% from 260nm to 2500nm. Quartz windows are... | |
| Sapphire (Al2O3) is one of the hardest minerals and optical materials available for use in the range from UV up to about 5µm. Sapphire is birefringent and if its use... | |
| Sapphire (Al2O3) is one of the hardest minerals and optical materials available for use in the range from UV up to 5µm. Sapphire is birefringent and... | |
| Silicon (Si) is one of the hardest minerals and optical materials available for use in the NIR (1µm) to about 6µm. Optical quality Silicon is usually doped (5 to 40... | |
| Sodium Chloride (NaCl), commonly known as rock salt, is a soft, highly soluble and hydroscopic material. It transmits over a broad wavelength range of about 0.25 to 16μm and is... | |
| These BBAR coated B270 telecom windows are coated for use in the 1050-1700nm region. Our coating achieves less than 0.5% reflection in the telecoms band and 0.09% reflection at 1550nm. | |
| These precision grade BK7 or equivalent windows are used to seal optical enclosures especially suited to low power laser applications. Our stock range of ¼ wave BK7 or equivalent windows... | |
| We offer two grades of stock borosilicate or equivalent windows. Our standard windows are cut from float sheet material and our polished grade is then further polished to better flatness... | |
| White float windows are cost effective medium performance windows and acceptable in a host of scientific instrument applications. They are cut from large sheets that are relatively flat and parallel... | |
| Zinc Selenide is used in the form of optical windows in FLIR (Forward Looking Infrared) systems, as meniscus, spherical or cylindrical lenses and as resonator windows in CO2 lasers. |
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