Right Angle Prisms

A right-angled prism is used as a mirror to deviate light by 90 degree, and also as a retroreflector to deflect light by 180 degree after the total internal reflection. 

◆ High efficiency, broadband beam turns
◆ Turn a beam 90° or 180° 
◆ Fused silica models transmit down to 200nm

90-degree Deflection
90-degree deflection occurs at the hypotenuse face.
The image is erected and reversed 

180-degree Deflection 
180 degree deflection takes hypotenuse as the input and output faces. Its main application is to be used as a retroreflector provided that the plane of incident beam includes the vertex. 


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