Semiconductor laser beam source device
文献类型：专利
| 作者 | NOGUCHI MASARU; MIYAGAWA ICHIRO |
| 发表日期 | 1987-10-20 |
| 专利号 | JP1987239434A |
| 著作权人 | FUJI PHOTO FILM CO LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Semiconductor laser beam source device |
| 英文摘要 | PURPOSE:To reduce the influence of a naturally emitted light and to extend an optical output area where the influence of a laser oscillated beam is great, by cutting components other than the area, which has the same wavelength as the laser oscillated beam, of the naturally emitted light through a dispersive optical element and a space filter. CONSTITUTION:After being made incident on a collimator lens 2 provided on the optical path and being converted to parallel beams, the beam oscillated from a semiconductor laser 1 is made incident on a prism 3 as the dispersive optical element which changes the optical path of an emitted beam is accordance with the wavelength of the incident light. Though most of the laser oscillated beam passing the prism 3 goes to the same optical path, the naturally emitted light passing the prism 3 goes to various optical paths is accordance with is wavelength components. Light emitted from the prism 3 in various directions is converged in various positions in accordance with wavelengths by a converging lens 4 as a converging optical element. A slit-shaped mirror 5 as the space filter which selectively takes out only light having an wavelength in the vicinity of wavelength lambda1 is provided in these light convergence positions, and the laser oscillated beam and only a part of the naturally emitted light are taken out as a reflected light. |
| 公开日期 | 1987-10-20 |
| 申请日期 | 1986-04-10 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59455]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJI PHOTO FILM CO LTD |
| 推荐引用方式 GB/T 7714 | NOGUCHI MASARU,MIYAGAWA ICHIRO. Semiconductor laser beam source device. JP1987239434A. 1987-10-20. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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