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Penta Prism

A pentaprism is a five-sided reflecting prism used to deviate a beam of light by a constant 90°, even if the entry beam is not at 90° to the prism. Penta Prisms can be widely used in Plumb Level, Surveying, Alignment, Range finding and Optical Tooling.

More details

Material:

BK7 Grade A optical glass

Dimension Tolerance:

+0,-0.2mm

Bevel: 

0.2 mm to 0.5 mm x 45 °

Clear Aperture:

>80%

Surface Quality:

60-40 scratch and dig

Flatness:

l /4 at 632.8 nm

Reflectivity:

R > 95% per face 

90 ° deviation tolerance:

As Table



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