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Specifications
Light Path Map
Description
Specifications
| Dimension Tolerance | ±0.2mm |
| Surface Quality | 60/40 |
| Clear Aperture | >90% |
| Flatness | <λ/4@632.8nm |
| Angle Tolerance | <3 arc minutes |
| Roof Angle Tolerance | Up to 3 arc seconds |
| Coating | None, available |
| Material | BK7 |
Light Path Map
Description
Half Penta prism is exactly an half cut from penta prism, it is widely used in telescope.
Roof Half Penta prism is combined by half a penta prism and a totally internally reflecting roof which is attached to one of reflective face of the penta.
Standard Product
| Product Number | Diameter(mm) | Thickness(mm) | AR Coating | HR Coating | Cart |
| HPP001 | 18 | 40 | AR@450-650nm | Protected Aluminum |  |
| HPP002 | 12.7 | 12.7 | AR@450-650nm | Protected Aluminum | |
| HPP003 | 16.5 | 16.5 | AR@450-650nm | Protected Aluminum | |
| HPP004 | 18 | 20 | AR@450-650nm | Protected Aluminum | |
| HPP005 | 12.7 | 12.7 | / | / | |
| HPP006 | 16.5 | 16.5 | / | / | |
| HPP007 | 18 | 20 | / | / | |
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