Right Angle Prisms
The right-angle prisms are often preferable to an inclined mirror in applications involving severe acoustic or inertial loads. This is because a right-angle prism is easier to mount and deforms much less than a mirror in response to external mechanical stress. Very high transmission can be achieved by using the hypotenuse face in total internal reflection, and by antireflective coating the entrance and exit faces. Alternatively, the hypotenuse face can be used in external reflection, and coating with a metallic reflective coating?
A Right-Angle Prism is used as a mirror to deviate light through 90 degree, and also as a retroreflector to deflect light throgh 180 degree by total internal reflection.
90-degree Deflection
90 degree deflection occurs at the hyotenuse face.The image is erected and reversed
180-degree Deflection
180 degree deflection uses with hypotenuse as the entrance and exit face.The mail application of it is used as a retroreflector provided that the plane of incident beam includes the vertex.


| * BK7 Right-Angle Prism | |
| Specification: Material: BK7 glass Dimension Tolerance: +0.0, -0.2 mm Clear Aperture: >80% Angle Tolerance: see the table |
Flatness: λ/4@632.8 nm Surface Quality: 60-40 scratch and dig Protective Bevel |
| 3 min. deviation | 1 min. deviation | 30 sec. deviation | 10 sec. deviation | |
| Size(mm) | Part No. | Part No. | Part No. | Part No. |
| A=B=C=3.2 | RAP3001 | RAP3002 | RAP3003 | RAP3004 |
| A=B=C=5.0 | RAP5001 | RAP5002 | RAP5003 | RAP5004 |
| A=B=C=10.0 | RAP1001 | RAP1002 | RAP1003 | RAP1004 |
| A=B=C=25.4 | RAP2501 | RAP2502 | RAP2503 | RAP2504 |
| A=B=C=50.8 | RAP5001 | RAP5002 | RAP5003 | RAP5004 |
* Other sizes and coating are available upon requirements
* 仕様は予告無く変更する場合があります。
| * UV Fused Silica Right-Angle Prism | |
| Specifications: Material: UV Grade Fused Silica Dimension Tolerance: +0.0, -0.2 mm Clear Aperture: >80% Angle Tolerance: see the table |
Flatness: λ/24@632.8 nm Surface Quality: 60-40 scratch and dig Protective Bevel |
| 3 min. deviation | 1 min. deviation | 30 sec. deviation | |
| Size (mm) | Part No. | Part No. | Part No. |
| A=B=C=12.7 | RAP1210 | RAP1211 | RAP1212 |
| A=B=C=25.4 | RAP2510 | RAP2511 | RAP2512 |
* Other sizes and coating are available upon requirements
* 仕様は予告無く変更する場合があります。

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