China Calcium Fluoride Supplier
Calcium Fluoride is used for optical windows, drilled discs, lenses and prisms in transmision range 0.15-9µm. Degradation due to to moisture in the atmosphere is minimal, and polished surfaces of the CaF2 windows may be expected to withstand several years exposure to normal atmospheric conditions.
Since they are nonaxial, CaF2 crystals do not require consideration of axial direction. Because of CaF2 low refractive index, Calcium Fluoride windows can be used without an anti-reflection coating.
Calcium Fluoride is attacked by atmospheric moisture at 600°C, where it begins to soften. The top use temperature is 800C, when moisture is not present. Irradiation of Calcium Fluoride windows causes some loss in UV transmission. CaF2 is sensitive to thermal shock.
Typical applications: VUV – UV – IR imaging systems, excimer laser windows, CaF2 viewport, Spectroscopic windows and lenses. Alkor produces CaF2 windows and mirrors for European manufacturers of gas detectors and gas analyzers.
Caf2 Supplier
Due to its high average transmission and low chromatic aberration relative to other IR materials, calcium fluoride(CaF2 ) is an excellent choice for windows and lenses for spectroscopy applications in the deep UV to near IR wavelength range (180 nm-8 µm). For its good transmission properties at LWIR range, the CaF2 are often selected as the windows for thermal imaging security inspections in electric power facilities and petroleum industries. A protective coated could be made on the windows surface to improve its deliquescence properties.
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