Chinese ZnSe Lens

Density: 5.27 g/cm3
Melting Point: 1525°C (dissociates about 700°C)
Thermal Conductivity: 18 W/(m K) at 298K
Thermal Expansion: 7.1 x 10-6/°C at 273K
Hardness Knoop: 120 with 50g indenter
Size: 3mm-200mm
Thickness: 0.50mm-30mm
Tolerance: +/-0.05mm

     ZnSe is transparent in wide spectral range from visible yellow to far IR, which is mainly used for optical windows, lenses,

mirrors, prisms and optical blanks, plates, disks, sheets, slabs particularly for infrared applications.

    Zinc Selenide is a chemically inert, non-hygroscopic and highly pure product that is very effective in many optical applications.

Due to its extremely low bulk losses, high resistance to thermal shock and stability in virtually all environments, easily machined.

ZnSe crystals are grown by Chemical Vapor Deposition process.  Zinc Selenide CVD is polycrystalline material, demonstrates

superior CO2 laser transmittance and is employed in the transmission optical components used in CO2 laser processing.


    Zinc Selenide Chemical Vapor Deposition material is produced by synthesis from zinc vapour and H2Se gas, forming as sheets

on graphite susceptors (ZnSe-CVD processes). Chemical purity of CVD-ZnSe 99.999%. The transmission range of ZnSe CVD is

(0.5 – 20) microns. Zinc Selenide is used for high power CO2 laser optics at 10.6 microns, for protective optics windows or

optical elements in FLIR (forward looking infrared) thermal imaging equipment, optics for medical and industrial applications

    Single crystal ZnSe Zinc Selenide is available, but is not common, it has lower bulk losses and thus more effective for CO2 optics.


   VY Optoelectronics Co., Ltd. has lots of inventory about ZnSe spherical lens and windows, please do feel free to contact us to 


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