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Roof prism, known as Amici prism, has a roof structure applied on the hypotenuse of a right angle prism. It is widely
used in binoculars by reverting the image.
| Standard Specifications |
| Material: |
BK7 grade A, fused silica |
| Dimension Tolerance: |
±0.1 mm to ±0.25 mm |
| Angular Deviation: |
± 3~5 arc minutes |
| Roof Angle Tolerance: |
± 5~15 arc seconds |
| Surface Flatness:: |
l/4 |
| Surface Quality: |
40-20 to 60-40 scratch-dig |
| Clear Aperture: |
≥ 90% |
| Bevel: |
0.25 mm x 45o |
| Coatings: |
antireflection |
| Part No. | Dimension A | Dimension B | Dimension H |
| BRFP010 | 12.5 mm | 10.0 mm | 9.0 |
| BRFP022 | 20.0 mm | 16.0 mm | 15.0 |
| BRFP028 | 23.0 mm | 19.0 mm | 18.0 |
| BRFP038 | 27.4 mm | 20.0 mm | 20.0 |
| BRFP045 | 35.0 mm | 25.4 mm | 25.4 |
| BRFP055 | 40.0 mm | 32.0 mm | 28.0 |
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