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Penta prism
Penta prism is a five sides reflecting prisms used to deviate a beam of light by a constant 90degree, in order to define the right angle in the optical design systems. Coating selection would be AR, Reflective. PHYO still can supply the half penta prisms which to deflect light for 45degree.

Spec Commercial High Precision
Material As required like H-K9L,BK7,FS As required like H-K9L,BK7,FS
Demension Tolerance +0.00/-0.20 +0.00/-0.10
90degree daviation tolerance 1-3arcmin 10/-10arcsec
45degree daviation tolerance 20/-20arcsec 3/-3arcsec
Flatness per 25mm@632.8nm L-L/2 L/4-L/8
Surface quality 80-50 40-20
Bevel 0.05-0.2 0.05-0.2
Coating AR, HR, Painting available AR, HR, Painting available
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