Multi-beam scanning optical system
US4796961A · kind A · utility
33Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | May 28, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/1135
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multi-beam scanning optical system of the present invention comprises a plurality of laser beam producing means, the producing means producing laser beams with their polarization directions parallel to one another, means for rotating the polarizing direction of at least one of the plurality of laser beams by 90 degrees, and a beam splitter means for superposing the plurality of laser beams on one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.