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Custom CVD ZnSe Half Penta Prism With Low absorption

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Custom CVD ZnSe Half Penta Prism With Low absorption

Brand Name : Wuhan Siwer Optics

Place of Origin : Wuhan,China

MOQ : 4 pieces

Price : 1200 USD/piece

Payment Terms : T/T, Western Union

Supply Ability : 300 pieces/month

Delivery Time : 5-7weeks

Packaging Details : 1.Tissue paper. 2.Plastic foam packaging film. 3.Hard carton box with quakeproof filler

Material : CVD Zinc Selenide

Size tolerance : +/-0.1mm

Chamfer : 0.2-0.5mm

Surface quality : 60/40

Surface flatness : Lambda/2 in 25.4mm

Angle tolerance : 6 arc min

Standard coating : Customized

Size range : 5-150mm

Usage : Infared system

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CVD ZnSe Half Penta Prism

Zinc Sulphide (ZnS) is a widely used IR transmitting material in windows, lenses and prisms. The material transmits at about 50% between 0.4 -12μm before dropping off to zero transmission around 15μm. Its low absorbance in the IR spectrum makes it desirable for CO2 lasers operating at 10.6μm. Zinc Sulphide has a pale yellow to clear appearance and a hardness of HK160. Although the material is resistant to thermal shock, it is not recommended for harsh environments.

Half Penta prism is exactly an half cut from penta prism.

Custom CVD ZnSe Half Penta Prism With Low absorption

Optical Properties of ZnSe Prisms

Material CVD Zinc Selenide
Diameter Tolerance +0.0/-0.1 mm
Thickness Tolerance ±0.1 mm
Surface Quality 40/20 Scratch-Dig
Surface Flatness
(Plano Side)		 λ/2 at 633nm
Surface Irregularity
(Peak to Valley)		 λ/4 at 633nm
Angle tolerance 3 arcmin (5 seconds according to customer requirements)


Transmittance of ZnSe window(T=2mm)

Custom CVD ZnSe Half Penta Prism With Low absorption

Custom CVD ZnSe Half Penta Prism With Low absorption

CVD ZnSe properties

Chemical Formula ZnSe
Molecular Weight 144.33
Crystal Class Cubic, hexagonal
Crystal Structure Polycrystalline
Density, g/cm3 at 293 K 5.27
Melting Temperature, K 1790
Thermal Conductivity, W/(m K) at 300 K 18
Thermal Expansion, 1/K 　
at 173 K 5.6 x 10-6
at 273 K 7.1 x 10-6
at 473 K 8.3 x 10-6
Specific Heat, cal/(g K) at 296 K 0.081
Debye Temperature, K 246
Bandgap, eV 2.7
Solubility in water at 298 K 0.001 g/100 g H2O
Knoop Hardness, kg/mm2(100 g load) 105
Young's Modulus, GPa 70
Bulk Modulus, GPa 40
Poisson's Ratio 0.28

Production Line

Custom CVD ZnSe Half Penta Prism With Low absorption

Infrared Elements Selection Guide

Custom CVD ZnSe Half Penta Prism With Low absorption



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optical wedge prism

      

ir prism

      
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