Description:

Len dia 20mm, Focus length 50.8mm/2", anti-reflective coated focal lens for 40-100W.

Focus lens is the fitting of CO2 machine, which is used to focus the beam after reflection, to realize engraving or cutting.

Meniscus type lens, better foucs and meticulous path of light.

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

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

Specification:

Material: Znse

Coating: 10.6um（AR Both Side）

Diameter tolerance: +0/-0.13mm

Centre Thickness Tolerance: ±0.25mm

Focal Length Tolerance: <±2%

Clear Aperture: >= 90% Diameter

Scratch/Dig: 40-20

Surface Accuracy: 入/2per1"Dia

Package Includes:

1 Piece Focal Len (Packed in boxes with foamed cotton)