Corner Cube Retroreflectors

These Prisms have 3 mirror surfaces making angle of 90 to each other,juxtaposed to form corner of a cube with the entrance face perpendicular to cube diagonal. All beams, despite of incident direction,are reflected back to the original direction. Corner cubes are used in high precision applications or with lasers over very long distances. These angle insensitive mirrors therefore find frequent applications in situations where orientation is difficult or impossible to control and where a mirror would therefore be unsatisfactory.

Specifications
Material:	BK7 Grade A optical glass
Dimension Tolerance:	+0.0, -0.2 mm
Clear Aperture:	>80%
Deviation:	180°±3 arc seconds
Flatness:	λ /4 on big surface, λ /10 on other surfaces
Surface Quality:	60-40 scrach and dig
Wavefront Distortion:	λ /2 @633nm
Bevel:	0.2 mm to 0.5 mm
Coating on input and output sides:	Uncoated

Note:The AR coating on input and output sides is available upon request.