Double concave lens

Material

BK7, FS, UVFS, CaF2, ZnSe, Si, Ge

Diameter tolerance:

+0.0/-0.1 mm

Thickness tolerance:

±0.1 mm

Focal Length Tolerence

±3 %

Design wavelength:

632.8 nm

Surface quality:

40-20 S-D

Surface figure:

<λ/4 @ 632.8 nm

Centration error:

<3 arcmin

Protective chamfers:

<0.25 mm x 45°

Coatings:

Available on request