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Equilateral Prisms

Equilateral prism is called dispersing prism. A white light ray is twice refracted passing through the prisms; meanwhile the output different color light can be separated. They are used for wavelength separation application. BTMT can provide fused silica, BK7 and SF10 materials. BK7 is more durable and has superior transmission, SF10 offers superior dispersion but it is more fragile and sensitive to training.
  • Material

    Crown, Flint, UVFS
  • Surface Flatness

    λ/8 @ 633nm
  • Surface Quality

    20/10 for BK7 & Suprasil II 40/20 for SF10
  • Dimension Tolerance

  • Angle Tolerance

    60°± 3arcmin
  • Clear Aperture

    90% of central dimension
  • Coating

    Single layer MgF2
  • Bevel


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