Infrared optical window

flat circularCaF2calcium fluoride (CaF2)

IR Windows Calcium Fluoride CaF2 Windows Calcium Fluoride windows and lenses for UV and IR spectrum. Custom made CaF2 windows, CaF2 lenses and wedges according to customer's specifications. CaF2 windows up to 220mm diameter; CaF2 wedges, prisms and CaF2 mirrors; Excimer CaF2 optics, Raman grade CaF2 optics and etc. Q: What’s Calcium fluoride used for? Calcium fluoride is often used in spectroscopic windows and lenses due to its high transmission from 250nm to 7μm. Its low absorption and high damage threshold make it a popular choice for excimer laser optics. Calcium fluoride's low index or refraction allows it to be used without an anti-reflective coating. The Knoop hardness of calcium fluoride is 158.3. Calcium Fluoride (CaF2) Windows manufactured from vacuum UV grade calcium fluoride are commonly found in cryogenically cooled thermal imaging systems. Uni-Optics provide artificially-crystallized calcium fluoride components available in UV grade and IR Grade. 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: per 25mm @633mm Bevel: Protective ( <0.2mm x 45° ) Coating: Optional Standard CaF2 Window Round Shape: Φ4x0.5 Φ6x1 Φ8x1 Φ10x0.5 Φ10x0.5 Φ12.7x1 Φ15x1 Φ18x1 Φ20x2 Φ25x1 Φ25.4x1 Φ25.4x2 Φ25.4x3 Φ30x2 Φ30x3 Φ38.1x3