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Laser Focusing Lens

It is made of high quality quartz material with high transmittance and high anti-laser damage threshold. The focusing mirror focuses the beam and produces a high energy density focus on the working material for processing, which is widely used in laser cutting machine, laser welding, laser cladding, etc. It occupies a very important position in the laser system, and the change of laser light path is achieved by the refraction of the lens.
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Laser focusing lens features-Suntop

Main function of laser focusing lens

1. Improve the ability of the edge beam incident on the detector.

2. In the same main optical system, the additional field mirror will reduce the area of the detector; if the same detector area is used, the field of view can be expanded and the incident flux can be increased.

3. Homogenize the non-uniform illumination on the photosensitive surface of the detector.


Features of laser focusing lens

1. Imported hard coated film is used, with high adhesion of film layer and high temperature resistance.

2. Adopt high quality quartz with high transmittance, high anti-laser damage threshold and stable performance.

3. Double-sided plated with high damage threshold transmissivity film to reduce the loss caused by reflection and long life.

4. Processed by slicing, polishing and grinding processes, high temperature resistance, strong laser resistance.


Parameters of laser focusing lens

Specification

Material

Fused Silica

Diameter Tolerance

+.000", -.005"

Thickness Tolerance

±.005"

Surface Figure

Plane: 1/0.5

Curve: 3/1 (Power/irregularity)

Centration

<.001"

Focal Length Tolerance

<1.0%

Surface Quality

<10-5 scratch-dig Laser Finish

Spectral Performance

Standard AR Coating type Both Sides @ 1070nm (AR Coating)

Absorption

<30PPM

Transmittance

>99.9%


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