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Square Flat Mirror

This precision plane mirror is highly polished to λ/10 flatness except indicating otherwise. They are intended for front surface use and are parallel to within 3 arc minute. These mirrors are not recommended for use as transmitting optics as the rear surface is only commercially polished. Circles, squares and rectangles are available in BTMT. Select a coating appropriate to your application using these mirrors.
  • Material

    BK7 & UVFS
  • Surface Flatness

    Side1: λ /10@633nm
    Side2: commercial polish
  • Surface Quality

    10/5 or 20/10 on side1
  • Parallelism

    less than 3 arc minutes
  • Diameter Tolerance

  • Thickness Tolerance

  • Clear Aperture

    >90% of central diameter
  • Bevel


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