Applications of calcium fluoride lenses
1. Laser technology: calcium fluoride lenses are widely used in excimer lasers due to their high transmittance in the ultraviolet to mid-infrared wavelength bands. They are used for laser collimation, focusing and beam shaping, especially in applications requiring high laser damage thresholds and low fluorescence.
2. Infrared optics: calcium fluoride lenses also have good transmittance in the infrared band (3-5 μm) and are therefore used in infrared imaging systems, infrared sensors, and infrared communication equipment.
3. Ultraviolet optics: in the UV band, calcium fluoride lenses have very high transmittance and low fluorescence emission, which makes them ideal for UV photodetectors and UV lasers.
4. High energy detectors: calcium fluoride is also used as a detector system in high energy physics experiments due to its high damage threshold and good thermal stability.
5. Astronomical observations: in astronomy, calcium fluoride lenses are used to make high performance telescope lenses, especially where ultraviolet and infrared radiation need to be captured.
6. Industrial measurement: calcium fluoride lenses are also used in industrial measurement equipment such as linear detector illumination, bar code scanning and holographic illumination.

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