A right-angle prism is an optical prism with an isosceles right-triangular cross-section. It serves as a fundamental building block for many complex prisms (such as Paul prisms and corner cube prisms). Its versatile functionality—which depends on which face light enters and how its reflective surfaces are utilized—makes it extremely widely applicable.
Simple structure: Easy to manufacture and low-cost.
High efficiency: Utilizes total internal reflection with minimal optical energy loss.
Size limitation: Large-aperture solid glass prisms tend to be heavy.
| 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 |
