Description:

Len dia 20mm, Focus length 76.2mm/3", anti-reflective coated focal lens for 40-100W laser.

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

This type is improved and update after collecting feedback from final users.

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

Can withstand high power density, firm film, less spot, resistant to wipe and scratch.

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

Specification:

Material: Znse

Size: 69x69x18.6mm / 2.7x2.7x0.7inch

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)