Beamsplitter Penta Prism
By adding a wedge and with partial reflective coating on first reflective surface, Penta Prism can be used as Beamsplitter. We supply Beamsplitter Penta Prism with standard Transmission/reflection (T/R) ratio of 20/80, 50/50. Others T/R ratio is available upon request
Beamsplitter penta prism is a penta prism glued with a wedge on a reflecting surface. It is used to divide an incident beam into two separate beams: Transmission(T) and reflection(R). The image is neither inverted nor reversed
Specifications:
| Material: | BK7 |
| Diameter Tolerance: | ±0.2mm |
| Angular Tolerance: | see the table as follow |
| Flatness: | l/2 | l/4 @ 632.8nm |
| Surface Quality: | 60/40 |
| Reflectivity | R>95% per face @400-700nm |
| T/R | 20/80±5 or 50/50±5 |
| Clear Aperture: | >80% |
| Bevel: | <0.25mm X 45° |
| Coating: | * S1&S2&S5: Single layer MgF2 coating * S3: Partial reflective coating * S4: Aluminized and painted black |
| Size(mm) | 30 Sec. Deviation | 10 Sec. Deviation |
| A x h | Part No. | Part No. |
| 7 x 6 | BPP1203 | BPP1303 |
| 10 x 10 | BPP1204 | BPP1304 |
| 15 x 15 | BPP1205 | BPP1305 |
| 20 x 20 | BPP1206 | BPP1306 |