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Calcium Fluoride (CaF2) Lenses

Calcium Fluoride (CaF2) Lenses are made of calcium fluoride substrate. Calcium fluoride material has a wide transmission spectrum range (180nm-8.0μm), with high damage threshold, low fluorescence, high uniformity and soft physical properties, is used as a basis for a variety of optical components.

Calcium Fluoride (CaF2) Lenses

Calcium fluoride has a high transmittance between ultraviolet and mid-infrared (250nm~7um), so it is widely used in the manufacture of prisms, windows and lenses, etc., in some applications with a wide spectral range, it can be used directly without coating, especially its small absorption and high laser threshold, which is very suitable for application in excimer laser optical systems.


As one of the main products of ECOPTIK, we can customize process high precision and quality calcium fluoride lenses. 

Calcium Fluoride (CaF2) Lenses Specification:


Calcium Fluoride (CaF2) 

Focal length tolerance

± 3%

Dimension tolerance

± 1%

Thickness tolerance

± 0.03mm

Surface accurcay


Surface quality



< 1 arc min

Clear aperture

> 90%


< 0.1

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