Plano concave lens

10 Jan 2011

Diameter Available 3mm--100mm
Diameter Tolerance ±0.05mm
Thickness Tolerance ±0.05mm
Focal Length Tolerance ±1%
Surface Accuracy L/4 irregularity @632.8nm
Surface Quality 20-10 S/D
Centration ＜3 arc min
Clear Aperture ＞90%
Bevel Protective bevel
Material BK7,Fused silica, and SF11, etc.
Coating AR coating