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Home > Products > Prisms > Porro Prisms
Optical N-SF11 Porro Prism
The porro prism is a classic optical reflecting prism system composed of two right angle prisms arranged in sequence. This configuration achieves both 180° beam deviation and left-right image reversal, making it particularly valuable for optical instruments such as binoculars and rangefinders.
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| How to choose the material for porro prisms? | ||||
| Material | Refractive Index | Abbe Number | Transmission Range | Application Scenarios |
| BK7 | 1.5168 | 64.17 | 350nm-2.1μm | Binoculars, laser collimation |
| N-SF11 | 1.7847 | 25.76 | 400nm-2.5μm | Compact military rangefinder |
| Fused Silica | 1.458 | 67.8 | 185nm-2.2μm | Ultraviolet laser system, space optics |
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