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products | optical-products | metal optic | mirror forms | polygonal
Polygonal Mirrors
Polygonal Mirrors

Faceted or polygonal mirrors are found in a variety of counting, scanning, measuring and machining applications.

All mirrors are precisely manufactured on LT Ultra precision fly-cutters, which can produce with angle tolerances in the order of ± 1 arc second and surface finishes between 1nm and 5nm (Ra).

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Polygonal Mirror Polygonal MirrorPolygonal Mirror

Technical Details

Width Across the Flats
Approx. 10mm to 500mm (A/F)
Planarity
Approx. λ/10 in the visible part of the spectrum
Machining Tolerances*
Pitch errors approx. 1 arcsecond
Pyramidal errors approx. 1 arcsecond
Surface Finish
Approx. 1 to 5nm ra*

*Depending on the material and its structure

Materials

  • Oxygen-free copper (OFHC-CU)
  • Silicon
  • Aluminum
  • Aluminum alloys (6082 and 6061 preferred)
  • Brass
  • Plastics (usually PMMA)
  • Crystalline materials
  • All nonferrous metals