Coated H-K9L Roof Prism
A right-angle roof prism is constructed with a 90° roof angle processed on the hypotenuse of a standard right-angle prism. It is specially designed for optical applications that require both 90-degree beam deflection and upright image formation, making it widely used in telescopes, general optical systems and rangefinders.
Features
• Entrance and exit surfaces: Single-layer MgF₂ anti-reflection coating
• Roof surfaces: Uncoated
Parameters
| Beam Deflection Angle | 90° ± 5’ | Roof Angle | ± 5’’, ± 15’’ |
| Material | Precision Annealed H-K9L | Surface Quality | IV |
| Dimensional Tolerance | ± 0.15 | Clear aperture | > 90% of face, LENGTH AND WIDTH |
| Surface Flatness | λ/4 Reflective Surface, λ/2 Transmitted Surface | Angle Accuracy | ± 5’’(Roof included angle tolerance) |
| Coaitng | Entrance and exit surfaces: Single-layer MgF₂ anti-reflection coating, Roof surfaces: Uncoated | ||
Model
| Size, mm | Beam Deflection Angle |
| A = 24.5, B = 18, C = 18 | 90° ± 5′ |
| A = 41, B = 32, C = 32 |