Calcium Fluoride is often used in spectroscopic windows and lenses due to its high transmission from 250nm to 7μm. Calcium Fluoride is also commonly found in cryogenically cooled thermal imaging systems. Its low absorption and high damage threshold makes it a popular choice for excimer laser optics. Calcium Fluoride's low refractive index allows it to be used without an antireflective coating. The Knoop hardness of Calcium Fluoride is 158.3.

1.Useful transmission over the spectral range from 0.2 to 8.0 microns..

2.Low solubility 3.Because of its composition calcium fluoride Window has a much longer useful life than most other materials when use in a fluorine environment.

4.We have two grades of material of calcium fluoride Window. One is for UV application, the other is for IR application. A wide transmission range and low solubility makes it useful for many application, including:

> Mirror substrate for UV laser systems

> Substrate for manufacturing Windows, Lenses for UV and IR application