FILTER PRODUCTS

to
to
Watch case window made out of flat sapphire glass. High surface flatness and scratch-dig can be achieved. 
  • Substrate Material: Sapphire
  • Antireflection Coating: Coated
  • Diameter: 100 mm
  • Surface Quality: 80-50 scratch-dig, 60-40 scratch-dig, 40-20 scratch-dig, 20-10 scratch-dig
  • Surface Flatness: Not Specified
  • ...
Data Sheet
Watch case window made out of flat sapphire glass. High surface flatness and scratch-dig can be achieved. 
  • Substrate Material: Sapphire
  • Antireflection Coating: Coated
  • Diameter: 50 mm
  • Surface Quality: 80-50 scratch-dig, 40-20 scratch-dig
  • Surface Flatness: Not Specified
  • ...
Data Sheet
Watch case window made out of flat sapphire glass. High surface flatness and scratch-dig can be achieved. 
  • Substrate Material: Sapphire
  • Antireflection Coating: Coated
  • Diameter: 100 mm
  • Surface Quality: 80-50 scratch-dig, 60-40 scratch-dig, 40-20 scratch-dig
  • Surface Flatness: Not Specified
  • ...
Data Sheet
Optical glass laser window N-BK7
Shandong Yanggu Constant Crystal Optics,Inc
Characteristics and superiority  1, Shape:Round, square, rectangle; 2,  Material :  BK7, H-K9L ,UV fused silica,Corning7980, etc 3, Customer’s design and tailor ...
  • Substrate Material: N-BK7
  • Antireflection Coating: Coated
  • Diameter: 25 mm
  • Surface Quality: 40-20 scratch-dig
  • Surface Flatness: lambda/8
  • ...
Data Sheet
CaF2 Window
Wuhan Union Optic, Inc
Ideal for Excimer Laser ApplicationHigh Transmission at 180nm to 8umCustom Size Available
  • Substrate Material: IR Grade CaF2, CaF2
  • Antireflection Coating: Uncoated
  • Diameter: 25.4 mm
  • Surface Quality: 80-50 scratch-dig
  • Surface Flatness: 1 lambda
  • ...
Data Sheet
Union Optic offers laser protection window for applications which require protecting laser output. High damage threshold (>15J/cm2) AR coating on both sides can minimize the reflections. These windows are used in front of lasers for material processing in order to protect the laser optics from hot material drops.
  • Substrate Material: Fused Silica
  • Antireflection Coating: Coated
  • Diameter: 25.4 mm
  • Surface Quality: 60-40 scratch-dig
  • Surface Flatness: 1 lambda
  • ...
Data Sheet
Gallium Arsenide Window
xinxiang shenzhou crystal
Xinxiang Shenzhou Crystal Technology Co., Ltd is one of  GaAs, InP, GaSb material manufacturers in China founded in 1970, headquarter is located in Xinxiang, with one research center in Beijing.We provides EPI wafer to optoelectronics and microelectronics industry, in diameter range from 2\" to 6 ...
  • Substrate Material: GaAs
  • Antireflection Coating: Coated, Uncoated
  • Diameter: 25.4 mm
  • Surface Quality: 80-50 scratch-dig
  • Surface Flatness: Not Specified
  • ...
Data Sheet
UV fused Silica Windows are pieces of flat transparent optical material that allow light into an optical instrument. It is plane-parallel plates and is likely to be anti reflection coated. It has low thermal expansion coefficient, and transparent from 185nm-2000nm for UV fused silica. 
  • Substrate Material: UV Grade Fused Silica
  • Antireflection Coating: Uncoated
  • Diameter: 20 mm
  • Surface Quality: 10-5 scratch-dig
  • Surface Flatness: lambda/10
  • ...
Data Sheet
Optical Silicon Windows are pieces of flat transparent optical material that allow light into an optical instrument. It is plane-parallel plates and is likely to be anti reflection coated. Optical Windows should be selected based on the material transmission or mechanical properties of the substrate. Optical Windows do not cause ...
  • Substrate Material: Si
  • Antireflection Coating: Uncoated
  • Diameter: 20 mm
  • Surface Quality: 20-10 scratch-dig
  • Surface Flatness: lambda/8
  • ...
Data Sheet
Germanium is well suited for IR laser applications. Due to its broad transmission range and opacity in the visible portion of the spectrum. It also acts as a longpass filter for wavelengths greater than 2 µm. In addition, germanium is inert to air, water, alkalis, and many acids. Germanium\'s transmission properties are highly ...
  • Substrate Material: Ge
  • Antireflection Coating: Uncoated
  • Diameter: 20 mm
  • Surface Quality: 10-5 scratch-dig
  • Surface Flatness: lambda/8
  • ...
Data Sheet
Zinc Selenide is ideal for optical systems that combine a 10.6 µm CO2 laser with a 633 nm HeNe alignment laser.Due to its wide transmission band, along with its low absorption in the red portion of the visible spectrum. When handling optics, always wear gloves. This is especially true when working with zinc selenide, as it is a ...
  • Substrate Material: ZnSe
  • Antireflection Coating: Uncoated
  • Diameter: 20 mm
  • Surface Quality: 20-10 scratch-dig
  • Surface Flatness: lambda/8
  • ...
Data Sheet
Sapphire Window
BoJen Optics, Inc.
Uncoated sapphire provides exceptional surface hardness and a transmission range extending from the UV to the MIR. It can only be scratched by a few materials other than itself. The uncoated substrate is chemically inert and insoluble to water, common acids, or alkalis at temperatures up to ~1,000 °C. Sapphire windows are ...
  • Substrate Material: Sapphire
  • Antireflection Coating: Uncoated
  • Diameter: 20 mm
  • Surface Quality: 40-20 scratch-dig
  • Surface Flatness: lambda/4
  • ...
Data Sheet
CaF2 Windows
Crysmit Photonics CO.,Ltd
Calcium Fluoride (CaF2) crystal have good performance at 0.13~10 μm wavelength range, wide range of light.CaF2 cyrstal is transparent over a broad range from ultraviolet (UV) to infrared (IR) frequencies. Calcium Fluoride (CaF2) is used to manufacture optical components such as windows and lenses, used in thermal imaging systems, ...
  • Substrate Material: CaF2
  • Antireflection Coating: Coated
  • Diameter: 20 mm
  • Surface Quality: 10-5 scratch-dig
  • Surface Flatness: lambda/10
  • ...
Data Sheet
Sapphire Windows
Crysmit Photonics CO.,Ltd
Single crystal sapphire possesses a unique combination of excellent optical, physical and chemical properties. The hardest of the oxide crystals, sapphire retains its high strength at high temperatures, has good thermal properties and excellent transparency. It is chemically resistant to common acids and alkali at temperatures up to ...
  • Substrate Material: Sapphire
  • Antireflection Coating: Coated
  • Diameter: 15 mm
  • Surface Quality: 10-5 scratch-dig
  • Surface Flatness: lambda/10
  • ...
Data Sheet
Fused Silica Windows
Crysmit Photonics CO.,Ltd
Fused silica is a superior optical material possesses excellent optical, chemical and physical properties what is formed by chemical combination of silicon and oxygen. Advantages of fused silica material include: good UV and IR transmission, stability and resistance to thermal shock over large temperature excursions, low thermal ...
  • Substrate Material: UV Grade Fused Silica
  • Antireflection Coating: Coated
  • Diameter: 30 mm
  • Surface Quality: 10-5 scratch-dig
  • Surface Flatness: lambda/10
  • ...
Data Sheet
Windows are widely used on optical system. There can be extreme differences of temperature, pressure, humidity and other parameters on either side of the windows. The optical, mechanical and thermal properties of the windows must be considered according intended use. We offer a range of optical quality windows including BK7 ...
  • Substrate Material: CaF2
  • Antireflection Coating: Uncoated
  • Diameter: 25.4 mm
  • Surface Quality: 80-50 scratch-dig
  • Surface Flatness: 1 lambda
  • ...
Data Sheet
Windows are widely used on optical system. There can be extreme differences of temperature, pressure, humidity and other parameters on either side of the windows. The optical, mechanical and thermal properties of the windows must be considered according intended use. We offer a range of optical quality windows including BK7 ...
  • Substrate Material: CaF2
  • Antireflection Coating: Uncoated
  • Diameter: 25.4 mm
  • Surface Quality: 80-50 scratch-dig
  • Surface Flatness: 1 lambda
  • ...
Data Sheet
Windows are widely used on optical system. There can be extreme differences of temperature, pressure, humidity and other parameters on either side of the windows. The optical, mechanical and thermal properties of the windows must be considered according intended use. We offer a range of optical quality windows including BK7 ...
  • Substrate Material: CaF2
  • Antireflection Coating: Uncoated
  • Diameter: 12.7 mm
  • Surface Quality: 80-50 scratch-dig
  • Surface Flatness: 1 lambda
  • ...
Data Sheet
Windows are widely used on optical system. There can be extreme differences of temperature, pressure, humidity and other parameters on either side of the windows. The optical, mechanical and thermal properties of the windows must be considered according intended use. We offer a range of optical quality windows including BK7 ...
  • Substrate Material: CaF2
  • Antireflection Coating: Uncoated
  • Diameter: 8.0 mm
  • Surface Quality: 80-50 scratch-dig
  • Surface Flatness: 1 lambda
  • ...
Data Sheet
CaF2 Windows WIN3-501
CryLight Photonics,Inc.
Windows are widely used on optical system. There can be extreme differences of temperature, pressure, humidity and other parameters on either side of the windows. The optical, mechanical and thermal properties of the windows must be considered according intended use. We offer a range of optical quality windows including BK7 ...
  • Substrate Material: CaF2
  • Antireflection Coating: Uncoated
  • Diameter: 50.8 mm
  • Surface Quality: 80-50 scratch-dig
  • Surface Flatness: 1 lambda
  • ...
Data Sheet

Did You know?

An optical flat by definition is a polished flat surface that can be used as a reference against which the flatness of an unknown surface may be compared by measurement. An optical flat utilizes the property of interference to exhibit the flatness on a desired surface. Optical flats are versatile optical components used in many applications, such as inspection of gauge blocks for wear and accuracy, as well as the testing of various components including windows, prisms, filters, mirrors, etc. Optical flats are sometimes given an optical coating and used as precision mirrors for special purposes, such as in a Fabry–Pérot interferometer or laser cavity.