| 发明名称 | Illumination apparatus, image sensor unit, image reading apparatus, and image forming apparatus | ||
| 摘要 | An illumination apparatus includes: a light guide that is formed in a rod shape and includes a positioning portion that is formed at one end in a longitudinal direction, and light incident surfaces that are formed at two end faces in the longitudinal direction; and light sources that are arranged in the vicinity of the light incident surfaces, respectively, and that emit light that is incident on the incident surfaces. The light guide is formed by injection molding. A gate portion for supplying a resin material during injection molding opens at a position that corresponds to a tip face of the positioning portion. | ||
| 申请公布号 | US9207376(B2) | 申请公布日期 | 2015.12.08 |
| 申请号 | US201514595605 | 申请日期 | 2015.01.13 |
| 申请人 | CANON COMPONENTS, INC. | 发明人 | Yoshida Hidemasa |
| 分类号 | H04N1/04;F21V8/00;H01L27/146;H04N1/028;G01J1/04;G01J1/42;H04N1/10 | 主分类号 | H04N1/04 |
| 代理机构 | Rossi, Kimms & McDowell LLP | 代理人 | Rossi, Kimms & McDowell LLP |
| 主权项 | 1. An illumination apparatus, comprising: a light guide that is formed in a rod shape, and that includes a positioning portion that is formed at one end in a longitudinal direction thereof, and light incident surfaces that are formed at one or two end faces in the longitudinal direction; and one or two light sources that are arranged adjacent to said positioning portion, respectively, and that emit light that is incident on said light incident surfaces; wherein: said light guide is formed by injection molding; a gate portion that is formed at a position into which a resin material flows during injection molding is provided at a tip face of said positioning portion; and said gate portion has projections and recesses. | ||
| 地址 | JP | ||