Negative Meniscus Lenses

 Negative Meniscus Lenses

Product name : Negative Meniscus Lenses
Description :

Specification
Material CaF2 (Calcium Fluoride)
Design Wavelength 4μm
Focal Length Tolerance ±1%
Diameter Tolerance +0.0/-0.1mm
Thickness Tolerance ±0.1mm
Surface Accuracy λ/4@632.8nm
Surface Quality 80-50
Centration <3 arc min
Clear Aperture >80%
Bevelling <0.2x45
Coating IR AR Coating 3~5μm