The rhombic prism is an optical component that achieves lateral displacement of the light path through two total reflections without changing the direction of the light path or the direction of the image. Its name is derived from its parallelogram-shaped geometry.
Beam displacement: The outgoing beam is perfectly parallel to the incoming beam without any angular deviation.
Image orientation remains unchanged.
Vignetting avoidance: In complex optical systems, displacing the beam path helps avoid other components, thereby eliminating vignetting.
| Material | BK7 grade A, B270, UV grade Fused Silica, Sapphire |
| Diameter Tolerance | +0.00,-0.05 mm (standard), up to +0.000/-0.002mm |
| Cyindrical Surface figure | 2λ@632.8nm (standard), up to λ/4 @632.8nm |
| Surface Quality | 60-40 S/D (standard), up to 20-10 S/D |
| Coating | Uncoated |
