The penta prism is a five-sided prism. It reflects light rays through a 90° angle by two reflections and does not invert or revert the image. The reflecting surfaces are aluminized. Slight movement of the prism does not affect the true right angle at which light rays are reflected. The penta prism also serves to shorten the optical path length of an instrument.
| Artifex Engineering | |
|---|---|
| Product Category | Optical Prisms |
| Product Name | Penta Prisms |
| Prism Type | Penta |
| Largest Dimension | 43.3 mm (1.7 inch) |
| Prism Material | BK7 Glass |
