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Dia 19mm 20mm 25 mm Focal Length 50.8mm 63.5 mm CVD Znse Lenses Co2 Focus Lens laser welding lens For Laser Welding Cutting
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US$ 5
≥10 Pieces
US$ 3
≥100 Pieces
US$ 1
≥500 Pieces
Quick Details
Use:
Infrared Optical Lens
Structure:
Other
Shape:
Other
Warranty:
3
Product Details
Products Description
Zinc selenide (ZnSe) lenses
are designed for focusing or collimation applications in medium and long wave infrared spectroscopy. These lenses are made of II-VI infrared zinc selenide material, have a volume absorption coefficient of <0.0005cm-1 at a wavelength of 10.6μm, and are available without coating or in a variety of broadband anti-reflective coating options. 8-12μm coatings are ideal for use with CO2 lasers and thermal camera applications, while dual-band 3-12μm coatings are suitable for hyperspectral applications. Zinc selenide plano-convex lenses have irregularities of <λ/20 at 10.6μm wavelengths, a surface quality of 40-20, and a surface roughness of <50Å. Available in three diameter options with effective focal lengths ranging from 12.7mm to 200mm.
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Material
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Zinc selenide
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Purity
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99.999%
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Surface accuracy
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1/4-1/10λ
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Surface quality
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40/20-10/5
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Coating
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Dual AR/AR
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Transmittance
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＞99%
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Coating area
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＞95%
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