| Penta Prism |
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| An incident beam can be deviated by 90 degree without inverting or reversing through a Penta prism. Penta prism has five sides, four of them polished. Two reflective sides are coated with metal or dielectric HR coating and these two sides can be blackened. The deviation angle of 90deg will not be changed if the penta prism is slightly adjusted, this will be convenient to install it. It is widely used in laser level, alignment and optical tooling.The reflecting surfaces of this prism must be coated with a metallic or dielectric reflective coating. |
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High Precision
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Competitive Price
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Quick Delivery
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Custom Size Available
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RoHS Compliant |
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| Specifications |
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| Material |
BK7 Grade A optical glass |
| Dimension Tolerance |
±0.2mm |
| 90°Deviation Tolerance |
Up to 5 arc seconds |
| Flatness |
λ/4@632.8nm |
| Reflectivity |
Dielectric reflective coating or metal coating
R>90%@630-680nm |
| Surface Quality |
60/40 scratch and dig |
| Clear Aperture |
>90% |
| AR Coating |
Available | |
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| Roof Penta Prism |
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| Roof Penta prism is combined with a penta prism and a totally internally reflecting roof which is attached to one of reflective face of the penta. |
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| Specifications |
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- Material: BK7 Grade A optical glass
- Dimension Tolerance: ±0.2mm
- 90°Deviation Tolerance: <10 arc seconds
- Roof Angle Tolerance: <3 arc seconds
- Flatness: up to λ/10@632.8nm
- Surface Quality: 60-40 scratch and dig
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