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Beamsplitter Penta Prism

By adding a wedge and with partial reflective coating on surface S1, it can be used as Beamsplitter, which we named as Beamsplitter Penta Prism. Transmission/ Reflection (T/R) ratio of 20/80, 50/50 or others for Beamsplitter Penta Prism is available upon equest.

Specification:

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

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

90°,180° Deviation Tolerance.....................................................see table

Flatness......................................inclined surface:λ/8,other:λ/4 @632.8nm

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

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

Beamsplitter Ratio...........................................T/R:20/80±5%@630-680nm

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

Coating:

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

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

P/NA×hDeviation
203016×5.8<60"
203026×5.8<30"
203036×5.8<10"
203046×5.8<5"
203057×6<60"
203067×6<30"
203077×6<10"
203087×6<5"
203098×8<60"
203108×8<30"
203118×8<10"
203128×8<5"
2031310×10<60"
2031410×10<30"
2031510×10<10"
2031610×10<5"
2031710×10<1"
●Unit:mm
●Other sizes and coatings are available upon request.