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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 of synthetic optical CaF2 are highly abrasion-resistant with hardness approaching that of diamonds. The material allows transmission of light in the range from ultraviolet to near-infrared.
       

      Standard Specifications
       

      Items
      Specifications
      Material
      Calcium Fluoride (CaF2)
      Designed Index
      1.432 ±0.0005 @ 700nm
      Dimension Tolerance
      +0.0/-0.2 mm
      Thickness Tolerance
      ± 0.2 mm
      Clear Aperture
      > 80%
      Parallelism
      < 1 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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