Multiple beam scanning apparatus
US5753907A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 1996 |
| Grant date | May 19, 1998 |
| Priority date | — |
| Expiry date | May 23, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/1135
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multiple beam scanning apparatus in which a plurality of light beams are repeatedly scanned at the same time, including a light source unit defining an optical axis and including plural laser diodes, collimator lenses for respectively converting light beams emitted by the laser diodes to respective parallel light fluxes, and a beam composing unit for superposing the light beams and emitting the superposed light beams therefrom. The light source unit is rotatively adjustable around the optical axis and is constructed such that respective light fluxes emitted from the beam composing unit are emitted with predetermined respective different angles at least in a main scanning direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.