Calcium Fluoride Single Crystal Window
Calcium fluoride is commonly used as a window material for both infrared and ultraviolet wavelengths, since it is transparent in these regions (about 0.15 μm to 9 μm) and exhibits extremely weak birefringence. Furthermore the material is fairly inert chemically so that these Calcium Fluoride Single Crystalwindowsare not attacked.
Specifications:
Material: Calcium Fluoride single crystal( UV or IR)
Diameter Tolerance: +0.0, -0.1mm
Thickness Tolerance: ±0.1mm
Clear Aperture: >85%
Parallelism: 3 arc minute
Surface Quality: 60-40 scratch and dig
Wavefront Distortion: l per 25mm @633mm
Bevel: Protective ( <0.2mm x 45° )
Coating: Optional
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