The calcium fluoride rectangular window offers broadband transmission from VUV to infrared and a high laser damage threshold, making it an excellent optical protective window for demanding UV–IR optical systems.
Material :
Fused SilicaTransmitted Wavefront Distortion :
λ/10 @ 633 nmDimension Tolerance :
+0.0 / -0.1 mmThickness Tolerance :
±0.2 mmParallelism :
< 5 arcsecSurface Quality :
10/5 – 20/10Clear Aperture :
> 90%Edge Bevel :
0.2 – 0.5 mm × 45°
Product Description
The CaF₂ rectangular optical window is a plane-parallel component designed to isolate internal optics from external environments. With excellent transmission across ultraviolet, visible, and infrared wavelengths, it supports broadband optical system designs.
Performance Advantages
Broadband transmission from vacuum UV to far infrared
High laser damage threshold suitable for excimer and high-power lasers
Excellent mechanical and thermal stability for harsh operating environments
Low absorption and scattering supporting precision optical performance
Rectangular geometry for easy mounting and system integration
Application Range
Calcium fluoride rectangular windows are widely used in:
Excimer and high-power laser systems
UV, visible, and infrared optical instruments
Infrared sensors and thermal observation windows
Camera lenses and imaging systems
Scientific and industrial optical equipment
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