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Znse Focus Lens

China ZnSe CO2 Laser Focus Lens Dia. 12 18 19.05 20mm FL 38.1 50.8 63.5 76.2 101.6 mm For Engraving Cutting Machine Parts

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Product Details

Product Description

① Material: China CVD ZnSe

② Diameter tolerance: +0/-0.1mm

③ Wavelength: 10.6um

④ Thickness tolerance: +0/+0.2mm

⑤ Transmittance: 99.5%

⑥ FL Tolerance: <±2%

⑦ Clear Aperture: >90%

⑧ Surface Figure: <λ/2 per 1"Dia

⑨ AR/AR coating: R<0.5% per surface

⑩ Surface Quality: 40-20scratch and dig


Specification

Diameter (mm)

Focal Length (mm)

Material

Wavelength (μm)

Edge thickness (mm)

Φ18

38.1/50.8/63.5/101.6

ZnSe

10.6

2

Φ19.05

38.1/50.8/63.5/101.6

ZnSe

10.6

2

Φ20

38.1/50.8/63.5/101.6

ZnSe

10.6

2

Φ25

38.1/50.8/63.5/101.6

ZnSe

10.6

2.5


Detailed pictures


Tips

Clean lens, must be very careful, before cleaning, please look at the following notice:

1. Take lens must wear gloves or rubber gloves, because the dirt and oil droplets on the hand can contaminate the lens, cause performance decline.

2. Dont use any tool to take the lens, such as tweezers, etc.

3. Put the lens on paper, in order to avoid damage.

4. Don’t put the glasses on rough or hard surface, infrared lens is easy to scrape.

5. Pure gold or pure copper surface don’t clean and touch.


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