Multi-beam scanner, multi-beam scanning method, synchronizing beam detecting method and image forming apparatus
文献类型：专利
| 作者 | HAYASHI, YOSHINORI |
| 发表日期 | 2007-06-19 |
| 专利号 | US7233425 |
| 著作权人 | RICOH COMPANY, LTD. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Multi-beam scanner, multi-beam scanning method, synchronizing beam detecting method and image forming apparatus |
| 英文摘要 | A multi-beam scanner includes light sources, a deflector deflecting the beams emitted from the light sources at an equiangular velocity, a scanning image-forming optical system guiding the deflected beams to a surface so as to be formed into light spots on the scanned surface, a light receiving device receiving the beams deflected toward optical write-in starting portions on the scanned surface as synchronizing beams, and a synchronizing beam optical system guiding the beams deflected toward the optical write-in starting portions on the scanned surface to the light receiving device. The scanning image-forming optical system includes two or more scanning positive lenses, with a region having a positive power in a main scanning direction on an optical write-in starting side, and each deflected beam received by the light receiving device passes through one or more but not all of the scanning positive lenses to be guided to the light receiving device. An optical path length from the deflector to the light receiving device is set larger than an optical path length from the deflector to the scanned surface in the synchronizing beam optical system. |
| 公开日期 | 2007-06-19 |
| 申请日期 | 2005-08-15 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33946]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | RICOH COMPANY, LTD. |
| 推荐引用方式 GB/T 7714 | HAYASHI, YOSHINORI. Multi-beam scanner, multi-beam scanning method, synchronizing beam detecting method and image forming apparatus. US7233425. 2007-06-19. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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