Calcium fluoride (CaF₂) Windows/Lenses
Description
Calcium fluoride (CaF₂) Windows provide high transmission from the ultraviolet (180 nm) to the infrared (8 μm).Calcium fluoride has a low absorption coefficient and high damage threshold, making these windows a good choice for use with free-space lasers. Optical calcium fluoride offers low dispersion (with an Abbe Number of 95) and low fluorescence, as well as excellent water, chemical, and heat resistance. In dry environments, CaF2 can be used up to 1000 °C, but in the presence of moisture, degradation will occur for temperatures exceeding 600 °C. Each window has a randomly oriented crystal axis.
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Calcium fluoride (CaF₂) Windows/Lenses
Specifications |
|
|---|---|
| Substrate Material: | CaF2, IR Grade CaF2 |
| Antireflection Coating: | Coated, Uncoated |
| Diameter: | 2~50 mm |
| Surface Quality: | 20-10 scratch-dig, 40-20 scratch-dig, 60-40 scratch-dig |
| Surface Flatness: | Other, 1 lambda, lambda/2, lambda/4, lambda/6, lambda/8 |
| Thickness: | 2~8 mm |
| Diameter Tolerance: | +0.0,-0.1mm |
| Thickness Tolerance: | +/-0.2mm |
| Parallelism: | ＜10 arc sec |
Features
- high transmission from the ultraviolet (180nm) to the infrared (8μm)
- low absorption coefficient and high damage threshold
- excellent water, chemical, and heat resistance
Applications
- Thermal imager
- Specroscopic
- Mirror substrates for UV laser system
- Substrate for manufacturing windows
- Lenses for UV, IR applications
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How to order?
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Ships from:
China
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Sold by:
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On FindLight:
since 2021
Frequently Asked Questions
The Calcium fluoride (CaF₂) Windows provide high transmission from the ultraviolet (180 nm) to the infrared (8 μm).
The Calcium fluoride (CaF₂) Windows have a low absorption coefficient, high damage threshold, excellent water, chemical, and heat resistance.
The Calcium fluoride (CaF₂) Windows can be used in thermal imagers, spectroscopic mirror substrates for UV laser systems, substrate for manufacturing windows, and lenses for UV and IR applications.
In dry environments, the Calcium fluoride (CaF₂) Windows can be used up to 1000 °C, but in the presence of moisture, degradation will occur for temperatures exceeding 600 °C.
The surface quality of the Calcium fluoride (CaF₂) Windows ranges from 60/40 to 20/10.