Beamsplitter Penta Prism

///Beamsplitter Penta Prism

Beamsplitter Penta Prism

Beamsplitter Penta Prism is produced by bringing together a precision Penta Prism and a wedge prism and adding an appropriate interference coating to one of the typically reflective surfaces.

Since minor motions of a Penta Prism do not influence the true right angle at which light rays are reflected, the difference between the light rays transmitted and reflected is highly controllable

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Product Catalogue

Part No.
Axh (mm) 1 min deviation 30 sec Deviation 15 sec Deviation
7 x 6 PRS1300 PRS1310 PRS1320
10 x 10 PRS1301 PRS1311 PRS1321
15 x 15 PRS1302 PRS1312 PRS1322
20 x 20 PRS1303 PRS1313 PRS1323




Diameter Tolerance(h)


Diameter Tolerance(A)


90°, 180°Deviation Tolerance

< 30 arc seconds

Surface Quality

60-40 scratch and dig



Beamsplitter Ratio

20/80 ± 5@ 630-680nm, T/R


Protective Bevel