Specifications

Material

BK7

Diameter Tolerance

+0.0~-0.25mm

Thickness Tolerance

＼0.25mm

Radius Tolerance

＼1%

Surface Quality

S/D=10/5 laser quality

Surface Figure

λ/10@ 633nm

Clear Aperture

>85%

Centration

<5 minutes(f＋50mm) or <3 minutes(f>50mm)

Chamfer

0.25mm at 45＜typical

Coating

Optional