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There is a wide variety of prism options however the Right-angle prism is the most common type of prism. The Right-angle prism is a 45°-90°-45° prism used to re-direct a beam of light through a right angle with the surfaces forming the 90° angle acting as transmitting faces. They are often coated with various optical coatings to form cubic beam splitters and color separation cubes used in various projection systems.

General Specifications:

  • Variety of materials such as BK-7, fused silica, Schott and Ohara glass types.
  • Commonly used in imaging systems and in laser applications.
  • High transmission can be achieved, using the hypotenuse face in total internal reflection (TIR), with an antireflection coating on the entrance and exit faces.
  • Images will be correct (left-to-right), inverted, or erect and reversed (left-to-right)

Dimensional Tolerances:
Surface Quality:
Clear Aperture:
All Schott and Ohara optical materials, fused silica, CaF2, and MgF2
 80-50 to 10-5
 Typically 85% central
 4-5mm and less
 < 10 arc seconds
 Protective to custom
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