Ridge prism
Ridge prism
illustrate:
"Right angle ridge prism" or "Amish prism", which can rotate and reverse the image and deflect light with 90 ° bending. It is suitable for telescopes and any optical instrument that needs to flip the image from the objective lens, open the right side and bend at 90 ° to maintain the correct visual direction.
The types and general data are as follows:
Surface accuracy
| parameter | Right-angle prism | Penta Prism | Dichroic prism | Roof prism | Special-shaped prism | Dove prism |
Angle error | ±3′ | ±3′ | ±3′ | ±3′ | ±3′ | ±3′ |
Effective aperture (%) | 90% | 90% | 90% | 90% | 90% | 90% |
Dimensional tolerance | -0.1mm | -0.1mm | -0.1mm | -0.1mm | -0.1mm | -0.1mm |
Surface roughness | λ/10 | λ/10 | λ/10 | λ/10 | λ/10 | λ/10 |
Surface Quality | 40/20 | 40/20 | 40/20 | 40/20 | 40/20 | 40/20 |
λ/8 | λ/8 | λ/8 | λ/8 | λ/8 | λ/8 | |
Substrate | Ordinary optical glass, K9, ZnSe, etc. | |||||
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