YAG head f theta scan lens 112*112 laser scanner lens 163 focal length

YAG head f theta scan lens 112*112 laser scanner lens 163 focal length

Detailed Product Description

F-theta lens YAG precision 1064nm /112*112/laser scanner lens.

Quick Detail:

laser f-theta lens can be used for laser marking and laser engraving, work with marking head(laser scanner).

Description:

Diameter Tolerance +0.0, -0.13mm

Thickness Tolerance ±0.25mm

Paraxial Focal Length ±2%

Centration 3 arc minutes

Clear Aperture >>80%

Surface Figure λ/2 per 1” @632.8nm

Surface Quality 40-20 scratch and dig

AR/AR Coating R<0.5% per surface @1064nmm

F-theta scan lenses are commonly used in conjunction with galvanometer scanning mirrors in laser engraving, cutting, and marking systems. The reason it being named as F-theta is due to the radial image height equals to focal length of the lens multiplied by the angle of the chief ray makes in the object space. Hence, from the image height, the distortion of the image can be calculated at each field of interest. Typically the F-theta distortion of this lens is kept less than 1% so that it produces a precise spot on the flat field on image plane.

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