High quality ZnSe ( imported material focus length co2 laser lens

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$1.00 - $99.00 / Piece | 5 Piece/Pieces (Min. Order)
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Quick Details
Place of Origin:
Jilin, China
Brand Name:
Model Number:
ZnSe, ZnSe
Double Convex
Focal length:
Supply Ability
Supply Ability:
10000 Piece/Pieces per Month
Packaging & Delivery
Packaging Details
Pretactive packing




Product Description

   Znse Lens,optical znse lens:Why use znse Lens?


ZnSe is used for optical windows, lenses, mirrors, prisms and optical blanks, plates, disks, sheets, slabs particularly for infrared applications Zinc Selenide (ZnSe) — transparent in wide spectral range from yellow (visible) to far IR. ZnSe material 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. To obtain superior transmittance, ZnSe crystals are grown by Chemical Vapor Deposition process (CVD). Zinc Selenide CVD is polycrystalline material, demonstrates superior CO2 laser transmittance and is employed in the transmission optical components used in CO2 laser processing. ZnSe (Zinc Selenide) Chemical Vapor Deposition (CVD) 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%. It has à polycrystalline structure; the grain size of Zinc Selenide CVD material is controlled to produce maximum strength. The transmission range of Zinc Selenide ZnSe-CVD is (0.5 – 20) microns. ZnSe CVD 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 (optical plane parallel windows (plates, disks, sheets, slabs, blanks), wedged windows, Brewster windows, optical meniscus, spherical and cylindrical lenses, prisms, resonator mirrors of CO2 laser). Single crystal ZnSe Zinc Selenide is available, but is not common, it has lower bulk losses and thus more effective for CO2 optics.


ZnSe (ZINC SELENIDE) base properties


Physical properties of Zinc Selenide (ZnSe)
Density5.27 g/cm3
Melting Point1525°C (dissociates about 700°C)
Thermal Conductivity18 W/(m K) at 298K
Thermal Expansion7.1 x 10-6/°C at 273K
HardnessKnoop 120 with 50g indenter
Specific Heat Capacity339 J/(kg K)
Young's Modulus (E)67.2 GPa
Bulk Modulus (K)40 GPa
Apparent Elastic Limit55.1 MPa (8,000psi)
Poisson Ratio0.28
Resistivity~1012 (Ohm x cm)
Chemical properties of Zinc Selenide ZnSe CVD
Solubility0.001 g/100g water
Molecular Weight144.33
Crystal Structurepolycrystalline ZnSe (CVD) Laser grade, grain size (50-70) microns ZnSe (CVD) IR optical grade, grain size (20-100) microns
Optical properties of ZnSe Zinc Selenide CVD
Transmission Range0.6 - 21.0 microns
Refractive Index2.4028 at 10 microns
Reflection Loss31.11% at 10.6 µm (2 surfaces)
dn/dT+61 x 10-6/°C at 10.6µm at 298K
dN/dµ = 05.5µm
Index of AbsorptionZnSe-CVD Laser grade 0.0005 (1/cm) at 10.6 microns ZnSe-CVD IR optical grade 0.003 (1/cm) at 10.6 microns


ZnSe (ZINC SELENIDE) refractive index


Wavelength, µm2.755.007.509.5011.012.513.5
Refractive Index2.442.432.422.412.402.392.38
Wavelength, µm15.016.016.917.818.619.320.0
Refractive Index2.372.362.352.342.332.322.31



Applications of Znse lens  

1.Application: Laser engraving ,cutting and marking etc.

2.Applicable meterial: leather, cloth,glass,acrylic,wood,color board ,Metal ect.



Stock lenses:




Our Processing Products                                        





Company Information

 Our Company processing ablility:                                                   

  Diameter Tolerance: +0.0, -0.02mm

  Center Thickness Tolerance: ±0.02mm

  Surface Quality: 10/5 scratch and dig

  Centration: ±30 seconds

  Surface Figure: lambda/10




The processing:                                                                         











Our Services

 After-sale Service                                                                   


  • Our Customer service will track the product processing until you received the goods and verify the product quality.
  • Professional engineers and application specialists respond to your requests efficiently Online via SKYPE (emma-realpoo)
  • Also through mail, voice phone, message and fax if nework is not accessible for customer 
  • Follow up the case, record the entire process. Solution will be provide with 24 hours.
  • Meanwhile,the problem complaint  will be reported to QC department.
    QC will find defect from which department ,who is  in charge to identify responsibility.
  • Collecting and record customer respond , suggestion, requirements.


Packaging & Shipping



We will use protective plastic and customized boxed to pack.(Enviroment friendly material) 


We could do customized packing according to the quantity.






OEM Service
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  • Welcome you to inquiry ,and thanks for beliving in Realpoo Optics Team.