Semiconductor laser light source unit
文献类型：专利
| 作者 | NAKATA, NAOTARO |
| 发表日期 | 1997-11-18 |
| 专利号 | US5689521 |
| 著作权人 | ROHM CO., LTD. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Semiconductor laser light source unit |
| 英文摘要 | A rod lens or a cylindrical lens is disposed in front of a semiconductor laser to increase a divergence angle of a laser beam emitted from the semiconductor laser so as to form a substantially circular far field pattern. In another constitution, there is disposed in front of a semiconductor laser a composite lens having two cylindrical surfaces whose cylindrical axes are perpendicular to each other. The cylindrical surface on the side of the semiconductor laser is a convex surface and the other cylindrical surface is a convex or concave surface. In still another constitution, two semiconductor lasers emitting the same optical signal are arranged adjacent each other so that respective light emitting portions of two pn junction planes are located in the same plane and perpendicular to each other, and that laser beams form orthogonal spots at a single predetermined position. |
| 公开日期 | 1997-11-18 |
| 申请日期 | 1994-06-13 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33477]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | ROHM CO., LTD. |
| 推荐引用方式 GB/T 7714 | NAKATA, NAOTARO. Semiconductor laser light source unit. US5689521. 1997-11-18. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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