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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. Germanium crystal windows used primarily for light in the infrared region of wavelengths from 2 to 20μm at which Germanium crystal offers higher internal transmittance.
       

      Standard Specifications
       

      Items
      Specifications
      Material
      Germanium (Ge)
      Density
      5.33g/cm3
      Heat Transfer Coefficient
      58.6 W/m?K
      Dimension Tolerance
      +0.0/-0.2 mm
      Thickness Tolerance
      ± 0.2 mm
      Clear Aperture
      > 90%
      Parallelism
      < 3 arc minutes
      Flatness
      λ/4 at 632.8 nm
      Surface Quality
      scratch and dig 60-40
      Bevel
      0.5 (0/-0.3) mm

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