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    4. 福州高特光电科技有限公司

      Used as transparent barriers for sending and receiving light between two phases under varying conditions in temperature pressure chemical composition cleanliness and phase. Windows made of zinc selenium (ZnSe or Zinc Selenide) the most commonly used optical material that allows transmission of infrared light.
       

      Standard Specifications 

      Items

      Specifications

      Material

      Zinc Selenide (ZnSe)

      Designed Index

      2.403 @ 10.6µm

      Density

      5.27g/cm3

      Heat Transfer Coefficient

      18 W/m?K

      Expansion Rate

      7.6×10-6/ ℃

      Dimension Tolerance

      +0.0/-0.2 mm

      Thickness Tolerance

      ± 0.2 mm

      Clear Aperture

      > 90%

      Parallelism

      < 1 arc minutes

      Flatness

      λ/20 at 10.6µm

      Surface Quality

      scratch and dig 60-40

      Bevel

      0.5 (0/-0.3) mm

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