isosceles right triangle optical prism

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Product description:

   Isoscels triangle right Angle Prism may be used as a 90 degree reflector or 180 degree retroreflector. The prism deflect, deviate and rotate beams of light as well as dispersing their wavelengths. They usually used for beam deviation or as substrates for beamsplitters.

1.90 degree deflection occurs at the hypotenuse face. The image is erected and reversed.

2.180 degree deflection uses with hypotenuse as the entrance and exit face. The mail application of it is used as a retroreflector provided that the plane of incident beam includes the vertex.


N-BK7 or UV fused silica

Dimension Range


Dimension Tolerance

+0.0, -0.2 mm / +0.0, -0.05mm

Clear Aperture

>80% / 95%

Surface Quality

S-D 60-40 / 10-5

Angle Tolerance

3 arc min / 2 arc sec


λ/2 / λ/8 @632.8 nm

Protective Bevel

0.25 mm x 45°

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