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Products & Services  >  Prisms  >  Penta Prism
Penta Prism

A Penta Prism deviates an input beam or image through 90° without inverting or reversing the image. In addition, the 90° beam deviation is not dependent on a precise alignment of the prism with respect to the incoming beam or image.

Specification:

Material..................................BK7 grade A optical glass

Dimension Tolerance.......................................±0.2mm

90° Deviation Tolerance.................................see table

Flatness................................................λ/2 @632.8nm

Reflectivity.................................R>95% @630~680nm

Surface Quality.............................60-40 scratch and dig

Chamfer.................................................<0.5mm×45°

Coating:

①Entrance & Exit Surfaces: multilayer AR coating,Ravg<0.5% @630~680nm

②Reflecting Surface: Enhanced Alumium with black paint,Ravg>85% @630~680nm

P/NA×hDeviation
202017×6<60"
202027×6<30"
202037×6<10"
202047×65"
202058×8<60"
202068×8<30"
202078×8<10"
202088×8<5"
2020910×10<60"
2021010×10<30"
2021110×10<10"
2021210×10<5"
2021315×15<60"
2021415×15<30"
2021515×15<10"
2021615×15<5"
2021710×10<1"
●Unit:mm
●Other sizes and coatings are available upon request.