A corner cube prism comprises three mutually perpendicular reflective surfaces. No matter the direction of incident light, the reflected beam returns parallel to the original incident path after three total internal reflections. It exhibits exceptional directional stability and is widely employed in laser ranging, radar calibration, and satellite communications.
Specifications:
| Parameter | Explanation |
| Material | K9 glass, etc. |
| Dimensions | 5×5×5mm~30×30×30mm |
| Surface Coating | Three reflective faces: high-reflectivity coating (Aluminum or Silver) |
| Incident/exit face: optional anti-reflection (AR) coating | |
| Reflection Angle Accuracy | ±5 arcseconds to ±1 arcsecond (high-precision version) |
| Operating Wavelength Range | 632.8 nm (He–Ne laser) to 1064 nm |
Optical Path Diagram:
Applications:
Laser rangefinders
Autonomous vehicle LiDAR systems
Satellite-based laser retroreflectors (e.g., lunar laser ranging)
