Meniscus Lens

Substrate

 K9, Fused silica, Sapphire, CaF2,Silicon, Germanium,Znse, ZnS optical glass as choice

size

5-300mm

Dimension Tolerance

+0/-0.1mm

Focal Length Tolerance

+/-1%

Surface Quality

60/40-10/5 as request 

Surface Flateness

lambda/4-lambda/10

CA

>90%

Centration

<3'

Chamfer

<0.2*45degree

Painting

Black Edges as customer demand, and Mounted as request

Coating

AR,BBAR,Metal Coating(Silver, Gold,Aluminum), Dielectric Coating upon request