Right Angle Prisms

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Right Angle Prisms

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  A Rigth-Angle Prism is used as a mirror to deviate light through 90 degree, and also as a retroreflector to deflect light through 180 degree by total internal reflection.

90° Deflection:


180° DeflectionCapability:

AttributeCommercialHigh Precision
MaterialBK7, Fused Silica, CaF2
Dimension Tolerance+0.0/-0.2mm+0.0/-0.1mm
Surface Quality60/40 scratch and dig20/10 scratch and dig
90° Deviation< 30 arc seconds

<5 arc second

Surface Flatnessλ/2 @632.8nmλ/8 @632.8nm
Clear Aperture> 80%

> 90

Protective Beve<0.25mm x 45°

<0.1mm x 45

Note: Custom sizes and wavelength range are available upon request.