
Representative image. Final geometry, finish and coating are confirmed from your drawing.
Reference · TO-RAP
Right-Angle Prism
Prisms
A 90° beam-steering prism with optional hypotenuse coating, supplied in N-BK7, UV fused silica or other optical glass.
Typical values
| Parameter | Reference |
|---|---|
| Material | N-BK7 / UV fused silica; N-SF11, CaF2, Ge, ZnSe by review |
| Dimension tolerance | ±0.2 mm standard; tighter by review |
| Surface quality | 40/20 standard; 20/10 by review |
| Clear aperture | >90% |
| Flatness | <λ/4 standard; λ/8–λ/10 by review |
| Angle tolerance | ±2 arcmin standard; ±5 arcsec by review |
| Pyramid error | <3 arcmin by review |
| Chamfer | <0.5 mm × 45° |
| Coating | Uncoated, AR, protected aluminum or dielectric HR |
Use this table to understand what is routine, what is reviewed against a drawing and where the project needs a different route.
| Parameter | Standard | By drawing review | Notes |
|---|---|---|---|
| Material | N-BK7 / UVFS | N-SF11, CaF2, Ge, ZnSe | — |
| Dimension tolerance | ±0.2 mm | Tighter tolerance | — |
| Surface quality | 40/20 | 20/10 | — |
| Flatness | <λ/4 | λ/8–λ/10 | — |
| Angle tolerance | ±2 arcmin | ±5 arcsec | — |
Right-angle prisms turn a beam by 90° through total internal reflection or a coated hypotenuse. Specify whether the hypotenuse needs protected aluminum, a dielectric HR coating or an AR coating, and state the clear aperture and mounting orientation.
- Beam steering
- Periscopes and instruments
- Laser breadboards
- 90° deviation
- N-BK7 / UVFS
- AR / HR / metallic coating
- Custom leg lengths
What to include in the RFQ
The following inputs let us quote the geometry, coating and inspection route without guessing.
Request a quote for this component- 01Drawing with leg lengths, orientation and clear aperture
- 02Material and wavelength band
- 03Angle, pyramid and flatness requirements
- 04Hypotenuse coating: AR, HR or metallic
- 05Quantity and inspection documents

TO-PEN
Penta Prism
A five-sided prism that deviates a beam by a constant 90° without image inversion, with coated reflecting faces.
View specification
TO-WDG
Wedge Prism
A small-angle prism for beam steering, wavefront correction and fringe generation, with custom wedge angle and coating.
View specification
TO-CCR
Corner-Cube Retroreflector
A three-face retroreflector that returns an incoming beam parallel to itself, quoted from the angle budget and mounting requirement.
View specification