Beam splitter for multibeam A/O modulators and printer systems
US4733252A · kind A · utility
15Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1987 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | Mar 30, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/1135
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scanning system with unpolarized laser, a birefringent beam splitter to split the unpolarized beam into dual orthogonally polarized beams, a polarization insensitive unitary dual beam modulator for separately modulating the beams in accordance with discrete image signal inputs, and a control for operating the modulator at optimum acoustic power levels. In an alternate embodiment, a quarter wave plate is inserted in the optical path between laser and beam splitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.