Right Angle – Deviation, Displacement
Right angle prisms are optical elements having at least three polished faces inclined relative to each other at 45-90-45 degrees. Right Angle Prism can be used to bend a beam by 90° or 180°, depending on which face is entrance face. Paralight Optics can provide standard right angle prisms from 0.5mm to 50.8mm size. Special sizes can also be offered upon request. They can be used as total internal reflectors, hypotenuse face reflectors, retroreflectors and 90° beam benders.
Material Properties
Function
Deviate the ray path by 90° or 180°.
Used in combination for image/beam displacement.
Application
Endoscopy, microscopy, laser alignment, medical instrumentation.
Common Specifications
Transmission Regions & Applications
| Parameters | Ranges & Tolerances |
| Substrate Material | N-BK7 (CDGM H-K9L) |
| Type | Right-Angle Prism |
| Dimension Tolerance | +/-0.20 mm |
| Angle Tolerance | +/-3 arcmin |
| Surface Quality (scratch-dig) | 60-40 |
| Pyramidal Error | < 3 arcmin |
| Clear Aperture | > 90% |
| Surface Flatness | λ/4 @ 632.8 nm per 25mm range |
| AR Coating | Entrance and exit surfaces (MgF2): λ/4 @ 550 nm |
| Hypotenuse | Protected aluminum |
If your project demands any prism we are listing or another type such as littrow prisms, beamsplitter penta Prisms, half-penta prisms, porro prisms, roof prisms, schmidt prisms, rhomhoid prisms, brewster prisms, anamorphic prism pairs, pallin broca prisms, light pipe homogenizing rods, tapered light pipe homogenizing rods, or a more complex prism, we welcome the challenge of solving your design needs.
