20mm ZnSe Lens For 10.6um CO2 Engraver Cutting Machine D20 X 3mm

Description:

Lens dia. 20mm, anti-reflective coated lens for 40-100W.

Meniscus type lens.

Can withstand high power density, firm film, resistant to wipe.

Used for processing, fits for engraving machine, marking machine, cutting machine, etc..

Material: ZnSe

Specification:

Coating: 10.6um（AR Both Side）

Diameter tolerance: +0/-0.13mm

Centre Thickness Tolerance: ±0.25mm

Clear Aperture: >= 90% Diameter

Package Includes:

1 Piece Reflective Len