Retroreflectors reflect an image or beam back 180° toward its original direction. Prisms achieve this either through total internal reflections (TIR) or specular reflections, depending on whether the reflective faces are coated
| Material | optical glass/BK7/K9/UV fused silica/CaF2/ZnSe |
| Dimension | 0.75-200mm |
| Dimensional Tolerance | ±0.01mm |
| Angle Tolerance | ±3‘ |
| Surface Flatness | 1/4Lambda |
| Effective aperture | >90% |
| Surface Quality | 60/40, 40/20 20/10 or better |
| Bevel | 0.1-0.3mmx45° |
Can be customized according to your requirements