Economy K9L Corner Cube Prism
Also known as corner cube retroreflectors, corner cube prisms feature unique optical retroreflection performance. Regardless of the incident angle, any light beam entering the clear aperture undergoes three internal reflections and returns precisely along its original optical path with a 180° reflection orientation, forming an inverted image accordingly. Ideal for complex working scenarios where beam steering is difficult to adjust and control accurately, these prisms deliver stable and reliable retroreflection effects for various optical systems.
Features
• Achieves precise 180° retroreflection with inverted image output
• Entrance surface: coated with MgF₂ anti-reflection film
• Reflective surface: aluminum coating with black paint protective finish
Parameters
| Deflection Angle | 180° ± 5’’ | Surface Quality | IV |
| Material | Precision Annealed H-K9L | Clear aperture | > 90% |
| Diameter Tolerance | 0 /- 0.15 mm | Wavefront Distortion | λ/4 |
Model
| Dia., mm | h, mm | Beam Deflection Angle |
| Φ12.7 | 9.5 | 180 ± 5” |
| Φ25.4 | 19.1 | |
| Φ64 | 48.0 |
