Method and apparatus for generating an optical beam for use in an imaging system
文献类型：专利
| 作者 | WHEELER, JOSEPH A.; FOURNIER, DAVID R.; STRAAYER, RONALD J. |
| 发表日期 | 1997-06-17 |
| 专利号 | US5640473 |
| 著作权人 | GERBER SYSTEMS CORPORATION |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Method and apparatus for generating an optical beam for use in an imaging system |
| 英文摘要 | An optical beam generator system for use in an imaging system that forms an image in a substrate comprises a beam generator, a mode filter and a state selector. The optical beam has a first power level above an exposure level that exposes the image in the substrate and a second power level below the exposure level which does not expose the substrate. The beam generator generates a near single mode coherent optical beam in response to received command signals corresponding to an "on" state and generates a multimode incoherent optical beam in response to received command signals corresponding to an "off" state. The filter is optically coupled to the beam generator and attenuates an optical component of the received optical beam which is not single mode to a magnitude below the exposure level. The state selector generates the "on" and "off" command signals corresponding to the "on" and "off" states such that the filter outputs the coherent optical beam with minimal attenuation during the "on" state and with maximum attenuation during the "off" state. |
| 公开日期 | 1997-06-17 |
| 申请日期 | 1996-07-02 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/36333]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | GERBER SYSTEMS CORPORATION |
| 推荐引用方式 GB/T 7714 | WHEELER, JOSEPH A.,FOURNIER, DAVID R.,STRAAYER, RONALD J.. Method and apparatus for generating an optical beam for use in an imaging system. US5640473. 1997-06-17. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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