Method and apparatus for anamorphically shaping and deflecting electromagnetic beams
US4929067A · kind A · utility
9Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 3, 1989 |
| Grant date | May 29, 1990 |
| Priority date | — |
| Expiry date | Jan 3, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/1398
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for anamorphically shaping a beam of radiation and for deflecting such beam by 90.degree.. The apparatus consists of a prism having at least four faces, two of such faces being parallel. The prism is arranged to receive a beam at the Brewster angle .THETA..sub.B, and is adapted to deflect the beam by 90.degree. by refraction and double internal reflection. The prism faces define four internal angles of .THETA..sub.B, 90.degree.+.THETA..sub.B, 90.degree.-.THETA..sub.B and 180.degree.-.THETA..sub.B.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.