Porro-prism
[pawr-oh] /ˈpɔr oʊ/
noun, Optics.
1.
an isosceles, right-triangular prism in which light entering one half of the hypotenuse face is reflected at the two short sides and is reversed in orientation when it leaves the other half of the hypotenuse: used in 90°-oriented pairs in binoculars to increase the length of the optical path and to erect the final image.
Read Also:
- Porsena
/ˈpɔːsɪnə/ noun 1. Lars (lɑːz). 6th century bc, a legendary Etruscan king, alleged to have besieged Rome in a vain attempt to reinstate Tarquinius Superbus on the throne
- Porson
/ˈpɔːsən/ noun 1. Richard. 1759–1808, English classical scholar, noted for his editions of Aeschylus and Euripides
- Port
[pawrt, pohrt] /pɔrt, poʊrt/ noun 1. a city, town, or other place where ships load or unload. 2. a place along a coast in which ships may take refuge from storms; harbor. 3. Also called port of entry. Law. any place where persons and merchandise are allowed to pass, by water or land, into and […]
- Portabella
[pawr-tuh-bel-uh] /ˌpɔr təˈbɛl ə/ noun 1. a very large, rich-flavored cremini mushroom, often grilled, broiled, or sautéed.
- Porta
/ˈpɔːtə/ noun 1. (anatomy) an aperture in an organ, such as the liver, esp one providing an opening for blood vessels porta por·ta (pôr’tə) n. pl. por·tae (-tē)