Plano-Concave Lenses

Plano-concave lens is the most common item used for light projection and beam expansion. Coated with antireflective coatings, lenses are used in various optical systems, lasers and assemblies. 

Technical Parameters:

Material
BK7, FS, UVFS, CaF2, ZnSe, Si, Ge
Wavelength
350-2000nm/185-2100nm
Dimension Tolerance
+0.0/-0.1mm

Thickness Tolerance
+/-0.1mm
Clear Aperture
>85%
Focal Length Tolerance
5%(Standard)/ 1%(High Precision)
Surface Quality
40/20(Standard)/ 20/10(High Precision)
Centration
<3 arc min
Coating Upon customers' request