Porro prism en · NOUN
Etymology
Named after its inventor, Ignazio Porro.
Meanings
- A reflection prism used in optical instruments to alter the orientation of an image. It consists of a block of glass shaped as a right geometric prism with right-angled triangular end faces.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| Porro prisms | Number=Plur | lexicographic |