This Calcium Fluoride Double-Convex Lens offers outstanding transmission from ultraviolet to infrared regions, providing low dispersion, high laser damage threshold, and excellent imaging quality for precision optical systems.
Material :
Calcium Fluoride (CaF₂)Design wavelength :
587.6nmFocal Length Tolerance :
±1%Dimension Tolerance :
+0.0/-0.1mmThickness Tolerance :
±0.1 mmSurface Accuracy :
λ/4@632.8nmSurface Quality :
40-20Centration :
<3 arcmin
Product Description
The Calcium Fluoride (CaF₂) Double-Convex Lens is made from high-purity crystalline CaF₂, providing superior transmission from 180 nm to 8 μm. Its symmetrical double-convex geometry allows for precise light focusing and minimal spherical aberration in both collimating and converging optical setups. With low refractive index and minimal chromatic dispersion, this lens is ideal for broadband optical systems operating across UV, visible, and IR regions. It also features exceptional resistance to thermal shock, humidity, and high laser energy. The lens is commonly used in spectroscopy, laser focusing, and infrared imaging. Custom dimensions, focal lengths, and coating options (UV AR, IR AR, or broadband AR) are available to meet different optical system requirements.
Performance Advantages
Wide spectral transmission range (UV–IR)
Low refractive index and dispersion
High resistance to laser damage and thermal stress
Moisture-resistant and chemically stable
High precision polishing ensures excellent imaging quality
Custom coatings and sizes available
Application Range
UV, visible, and IR imaging systems
Laser focusing and collimation optics
Spectroscopy and analytical instruments
Infrared cameras and thermal imaging
Astronomy and precision optical research
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