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    4. 福州高特光电科技有限公司

       Achromatic waveplate is similar to Zero-order waveplate except that the two plates are made from different materials, such as crystal quartz and magnesium fluoride. Since the dispersion of the birefringence can be different for the two materials, it is possible to specify the retardation values at a wavelength range.

      Optical grade Crystal Quartz and MgF2
      Dimension Tolerance:
      +0.0, -0.2mm
      Wavefront Distortion:
      < l/ 8@633nm
      Retardation Tolerance:
      <l/ 100
      Surface Quality:
      20/10 Scratch and Dig
      AR Coating:
      R<0.2% at center wavelength
      Standard wavelength:
      VIS :465-610nm,

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