Multi-beam light source, method for manufacturing the same, light scanning unit using the same, and image forming apparatus using the same
US7477813B2 · kind B2 · utility
8Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2007 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Jan 16, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12176
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provides a multi-beam light source including a light guide array by which the yield can be improved. An array pitch P2 of entrance surfaces of light guide pattern is 1/N as wide as an array pitch P1 of exit surfaces of optical fiber arrays. The number of the light guide patterns is N or more times as large as the number of optical fibers. The exit surfaces of a plurality of the optical fibers are coupled with the entrance surfaces of a plurality of the light guide patterns opposed thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.