The penta prism is a very important turning prism in optical systems. Based on the principles of light reflection and refraction, it consistently deflects incoming light at a constant 90° angle regardless of the entry angle, without producing a mirror-reversed image.
Constant Deflection Angle: The 90° deflection angle is highly stable.
Erect Image Formation: Produces an image with correct orientation.
High Reflectivity: The coated reflective surfaces achieve high reflectivity with minimal light loss.
| 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 |
