Prism is a transparent optical element with flat, polished surfaces that refract light. At least two of the flat surfaces must have an angle between them. The exact angles between the surfaces depend on the application.
We supply a vast range of optical prisms- Inverting, rotating, deviating, displacing or dispersing prisms made to customer specifications. High quality optical prisms, each one with its own particular geometry, needed to perform a specific imaging.
- 1. Inverting, rotating, deviating, displacing or dispersing prisms.
- 2. Roof prisms
- 3. Right angle prisms
- 4. Wedge prisms
Main Features
- Standard wedge prisms (40-20 scratch & dig, surface flatness λ/4@633 nm),
- Precision wedge prisms (20-10 scratch & dig, surface flatness λ/4@633 nm),
- Laser dispersing prisms made of N-BK7, UVFS or SF11 optical material
- All angles ≤ 3 min of arc
I. Right angle prisms
Right angle prisms turn light through 90° by internal reflection from the hypotenuse, or 180° from two right angle surfaces. When the light incident angle is perpendicular to the right angle surfaces, the light will be reflected at the surface of glass/air interface.
We supply a range of right angle prisms to meet UV-Visible-NIR applications, with high surface quality and tight tolerance angles.
| Right Angle Prism | COMMERCIAL GRADE | FACTORY STANDARD | PRECISION GRADE |
| Dimension Tolerance(mm) | ±0.05 | ±0.03 | ±0.0125 |
| Angle Tolerance | 5‘ | 3’ | 30" |
| Surface Quality | 80-50 | 40-20 | 10-5 |
| Flatness @632.8 nm | 2 Lambda | 1/2 Lambda | 1/10 Lambda |
| Coating (T% avg) VIS | 96-98% | 99% | 99.5% |
| Coating (R% avg) VIS | 96-98% | 99% | 99.5% |
| Materials | BK7, Bak4, fused silica, ZnSe,Ge,CaF2 |
Corner Cube Retro reflectors
Corner cube is total reflecting prism formed by 3 perpendicular surfaces, where the incident light angle does not influence the final emerging light angle but reflected by 180°, it offers excellent parallelism between the incident and exit beams.
We supply both corner cube in mount or without mount, our precision corner cube retro reflectors have been used for Laser ranging,
positioning and guidance, laser communication, optical transformation. Our OEM typical production accuracy is beam deviation < 5 arc sec in diameter within 2 inches.
Standard Specifications
| Corner Cube | COMMERCIAL GRADE | FACTORY STANDARD | PRECISION GRADE |
| Dimension Tolerance(mm) | ±0.05 | ±0.03 | ±0.02 |
| Angle Tolerance( Arc min) | 5‘ | 3’ | 30" |
| Surface Quality | 80-50 | 40-20 | 20-10 |
| Flatness @632.8 nm | 2 Lambda | 1/2 Lambda | 1/4 Lambda |
| Coating (T% avg) VIS | 96-98% | 99% | 99.5% |
| Coating (R% avg) VIS | 96-98% | 99% | 99.5% |
| Materials | Optical Glass, fused silica |