| 发明名称 | Exposing device and image forming apparatus | ||
| 摘要 | Provided is an exposing device capable of enhancing usage efficiency of light and preventing degradation of imaging property due to a misalignment with a photosensitive drum. The exposing device includes: a laser array including multiple lasers arranged in a predetermined direction; and an optical system guiding light emitted from the each of the multiple lasers to a photosensitive member and focusing the light on the photosensitive member, in which the optical system includes multiple phase modulation elements to decrease an added phase lag in proportion to distance from a center axis that is defined by a principal light beam emitted from the each of the multiple lasers. | ||
| 申请公布号 | US9141024(B2) | 申请公布日期 | 2015.09.22 |
| 申请号 | US201414146289 | 申请日期 | 2014.01.02 |
| 申请人 | CANON KABUSHIKI KAISHA | 发明人 | Numata Aihiko |
| 分类号 | H04N1/40;G03G15/043 | 主分类号 | H04N1/40 |
| 代理机构 | Fitzpatrick, Cella, Harper & Scinto | 代理人 | Fitzpatrick, Cella, Harper & Scinto |
| 主权项 | 1. An exposing device, comprising: a laser array including multiple lasers arranged in a predetermined direction; and an optical system guiding light emitted from each of the multiple lasers to a photosensitive member and focusing the light on the photosensitive member, wherein the optical system includes multiple phase modulation elements to decrease a phase lag in proportion to distance from a center axis that is defined by a principal light beam emitted from the each of the multiple lasers. | ||
| 地址 | Tokyo JP | ||