以半導體激光器為基礎的感測裝置
文献类型：专利
| 作者 | JOHN K. KORAH; KRISTINA M. JOHNSON; VALENTIN MOROZOV; CHONG CHANG MAO |
| 发表日期 | 2002-04-12 |
| 专利号 | HK1039174A |
| 著作权人 | UNIVERSITY TECHNOLOGY CORPORATION |
| 国家 | 中国香港 |
| 文献子类 | 发明申请 |
| 其他题名 | 以半導體激光器為基礎的感測裝置 |
| 英文摘要 | A system for determining a distance to a target object or a displacement of a target object monitors electrical characteristics of a semiconductor laser aimed at the object. Light emitted from the laser (22) is reflected from a surface(s) of the object back into the laser (22). The amount of reflected light reaching the laser affects electrical characteristics of the laser. Because the amount of reflected light reaching the laser depends on the distance to the target object, the electrical characteristics of the semiconductor laser provide an indication of the distance to the target object (Fig. 3A). Also, a change in the electrical characteristics can be used to determine an amount of displacement of a target object. A system embodying the invention could also include an optical detector array which can be focused on a target object by monitoring electrical characteristics of one or more semiconductor lasers. A plurality of semiconductor lasers could be arranged in a two dimensional or a three dimensional array such that the semiconductor lasers (22a,b,c) are located at different distances from a target surface. By monitoring the electrical characteristics of the plurality of semiconductor lasers, one can determine both an amount and a direction of a displacement of a target object relative to the semiconductor laser array. |
| 公开日期 | 2002-04-12 |
| 申请日期 | 2002-01-28 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/86250]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | UNIVERSITY TECHNOLOGY CORPORATION |
| 推荐引用方式 GB/T 7714 | JOHN K. KORAH,KRISTINA M. JOHNSON,VALENTIN MOROZOV,等. 以半導體激光器為基礎的感測裝置. HK1039174A. 2002-04-12. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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