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Beamsplitter Penta Prism

Beamsplitter penta is combined with a penta prism and a wedge cemented on one reflective surface, a beamsplitter coating on the cemented interface to form a beamsplitter.

Now the transmission/reflection (T/R) ratio of beamsplitter penta prism we provided include 20/80, 30/70, 40/60 and etc. Other T/R ratio is available upon request.


Specifications

Material

BK7, Fused silica

Dimension Tolerance

±0.1mm

90° Deviation Tolerance

<30 arc seconds or 10arc seconds or better

180° Deviation Tolerance

<30 arc seconds or 10arc seconds or better

Flatness

<λ/[email protected] or better

Surface Quality

60/40 or better

Coating

Metal or dielectric reflective coating
Partial reflective coating on cemented surface
Multilayer “V” or BBAR coating

T/R Tolerance

20/80+/-2%; 30/70+/-3%; 40/60+/-4%; 50/50+/-5%

Clear Aperture

>90%

Chamfer

Protective






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