Light-source device and endoscope system
文献类型：专利
| 作者 | OOHASHI, EIJI; MORIMOTO, YOSHINORI; INOUE, TOSHIYUKI; SAITO, MAKI |
| 发表日期 | 2013-12-05 |
| 专利号 | WO2013179961A1 |
| 著作权人 | FUJIFILM CORPORATION |
| 国家 | 世界知识产权组织 |
| 文献子类 | 发明申请 |
| 其他题名 | Light-source device and endoscope system |
| 英文摘要 | In the present invention, the cross-section of a beam from a light-emitting element is shaped, with light-transmission losses reduced. A light-source device (13) for an endoscope is provided with the following: a light-emitting-element part (71) that has a laser diode (LD2); and a light-source module that has a beam-shaping part (73). Said beam-shaping part (73) is a prism-shaped light-guiding rod, and the cross-section thereof perpendicular to an optical axis (A) is hexagonal. A substantially elliptical beam emitted by the laser diode (LD2) is shaped by the beam-shaping part (73) into a substantially circular shape. When a minor-axis component (RS) of the elliptical beam enters the beam-shaping part (73), said minor-axis component (RS) is guided in the direction of the optical axis (A) while undergoing total internal reflection at the interior surface of a side face (73b) of the beam-shaping part (73). As the beam is being thus guided, since minor-axis components (RS) are incident upon sides of the hexagon at non-perpendicular angles, said minor-axis components (RS) are reflected at angles, causing rotation about the optical axis (A). Many of the light rays constituting the beam undergo such rotation, shaping the cross-section of the beam into a substantially circular shape. |
| 公开日期 | 2013-12-05 |
| 申请日期 | 2013-05-22 |
| 状态 | 未确认 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/58860]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJIFILM CORPORATION |
| 推荐引用方式 GB/T 7714 | OOHASHI, EIJI,MORIMOTO, YOSHINORI,INOUE, TOSHIYUKI,et al. Light-source device and endoscope system. WO2013179961A1. 2013-12-05. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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