CO2 Laser Scanning Lens SL1-10.6-35-60G
F-Theta scan lenses for CO2 lasers are normally used with galvanometer scanning mirrors in laser engraving, cutting and marking systems. The name F-theta refers to the radial image height being equal to the lens focal length multiplied by the chief-ray angle in object space. Image distortion at each field of interest can therefore be calculated from image height. The lens F-θ distortion is generally kept below 1% to produce precise spots over a flat image field. The single-element flat-field CO2 laser scan lens is designed for galvanometer-based carbon dioxide laser scanning systems and is widely used in laser drilling, marking and related applications.
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Overview
Specifications
| Parameter | Value |
|---|---|
| EFL | 60 mm |
| Scan Field | 35 mm × 35 mm |
| Diffraction Limit Spot | 78 um |
| Full Beam Diameter | 10 mm |
| Max input Angel | 28 deg |
| Lens Dia | 55 mm |
| ET | 2.2 mm |
| BFL | 59 mm |
| Material | CVD ZnSe |
| Focal length Deviation | ±0.5% |
| Beam deviation | <3 arc minutes |
| Clear Aperture | >80% |
| Surface Irregularity [@632.8nm] | λ/4per 25mm @632.8nm |
| Surface Quality | 40-20 scratch and dig |
| Coating [@10.6um] | AR/AR@10.6um |
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Datasheet
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