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  • N-BK7 Windows and H-K9L Windows

    Made from BK7 material, which has transparent range from 330-2100nm. The refractive index is 1.5168 at 587.6nm. The BK7 window has good performance over visible and near IR spectrum for most application.

  • High Precision Achromatic Waveplate

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  • IR Windows Barium Fluoride BaF2 Window

    Barium fluoride (BaF2) shows good optical transmission over UV-IR windows in 0.15μm~12.5μm.

  • IR Windows Magnesium Fluoride MgF2 Windows

    MgF2 windows are used in the UV, visible and IR ranges, with approximately 94% transmission from 200 - 1000 nm, and approximately 95% transmission from 1-6µm

  • IR Windows Calcium fluoride CaF2 Windows

    CaF2 has transparent range from 170-7800nm. The refractive index is 1.399 at 5000nm. 1. Low absorption coefficient 2. High damage threshold, 3. Low Dispersion (with an Abbe Number of 95) 4. Low fluorescence 5. Excellent water, chemical, and heat resistance

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ZnSe Window

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IR Windows Zinc Selenide ZnSe Windows

ZnSe is used widely for IR components, windows and lenses, and applied for Thermal Imaging, FLIR,  Medical systems and Co2 Laser

  • product orgin:

    China
  • shipping port:

    Fuzhou China
  • payment:

    T/T Payment, Western Union
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IR Windows Zinc Selenide (ZnSe) Windows


Zinc Selenide is the most popular material for infrared applications. It can transmit from 0.6um to 20 um. With its low absorption at IR wavelengths and visible transmission ZnSe based components including windows, output couplers, Prisms and lenses are widely used especially for Thermal Imaging, FLIR,  Medical systems and Co2 Laser.


Note: Special care should be taken when handling Zinc Selenide as it is a toxic material. Always wear rubber or plastic gloves to avoid risk of contamination.

ZnSe Windows SPECIFICATION:

Material: Zinc Selenide (ZnSe) 
Dimension Tolerance: +0.0, -0.1mm
Thickness Tolerance: ± 0.1mm
Surface quality: 60/40
Clear Aperture: >85%
Flatness: λ per 25mm
Parallelism: 3' 
Bevel: <0.25mm X 45°
Coating: AR Coated  or Up Requirement

ZnSe WindowsZnSe Lens

Typical Sizes:
Round Shape Φ5.0; Φ10.0 ; Φ12.7; Φ15.0; Φ20.0; 
Diameter(mm): Φ25.4; Φ30.0; Φ38.1; Φ50.8; Φ76.2
Square Shape: 5.0x5.0 ; 10.0x10.0 ; 15.0x15.0 ; 
WxH(mm) 20.0x20.0; 25.0x25.0; 50.0x50.0
Thickness(mm): 0.5; 1.0; 1.5; 2.0; 3.0; 
4.0; 5.0; 6.0; 8.0; 10.0

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