Calcium-fluoride-coated beamsplitting pentaprism
Adding a wedge and a partially reflective coating to one inclined face allows a pentaprism to function as a beamsplitter with a transmission/reflection (T/R) ratio of 50/50. Other ratios can be customized on request.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Available materials [Series supply, not distinguished by individual PN] | N-BK7, grade A optical glass, fused silica |
| Dimensional Tolerance [Standards] | ±0.2 mm |
| Dimensional Tolerance [Processing Upper Limit] | ±0.1 mm |
| 90° deviation tolerance [Standards] | 3 ’ |
| 90° deviation tolerance [Processing Upper Limit] | 3 ’’ |
| Surface Figure [Standards] | λ/2 |
| Surface Figure [Processing Upper Limit] | λ/4 |
| Surface Finish [Standards] | 60-40 |
| Surface Finish [Processing Upper Limit] | 40-20 |
| Coating requirements | Optional |
| Coating [Input/output surfaces S1 and S2] | Antireflection Coating |
| Beamsplitter ratio [Transmittance/reflectance; Original table ±5 has no percent sign] | 20/80±5 or 50/50±5 |
| Reflection [Per surface; 630~680nm] | >90% |
| Typical transmittance/reflectance T/R [Typical application description; Other ratios customizable] | 50/50 |
| AxB [Model UPBA001] | 6.0 mm × 7.0 mm |
| L1=L2 [Model UPBA001] | 9.90 mm |
| AxB [Model UPBA002] | 10.0 mm × 10.0 mm |
| L1=L2 [Model UPBA002] | 14.14 mm |
| AxB [Model UPBA003] | 15.0 mm × 15.0 mm |
| L1=L2 [Model UPBA003] | 21.21 mm |
| AxB [Model UPBA004] | 20.0 mm × 20.0 mm |
| L1=L2 [Model UPBA004] | 28.28 mm |
| AxB [Model UPBA005] | 30.0 mm × 30.0 mm |
| L1=L2 [Model UPBA005] | 42.42 mm |
Applications
Datasheet
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Supplier Information
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