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 |
|
T/R Tolerance |
20/80+/-2%; 30/70+/-3%; 40/60+/-4%; 50/50+/-5% |
|
Clear Aperture |
>90% |
|
Chamfer |
Protective |
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