Optical recording/reproducing apparatus
文献类型:专利
作者 | KOYAMA, OSAMU, C/O CANON KABUSHIKI KAISHA; YAMAWAKI, TAKESHI, C/O CANON KABUSHIKI KAISHA |
发表日期 | 1994-03-23 |
专利号 | EP0588575A2 |
著作权人 | CANON KABUSHIKI KAISHA |
国家 | 欧洲专利局 |
文献子类 | 发明申请 |
其他题名 | Optical recording/reproducing apparatus |
英文摘要 | An optical recording/reproducing apparatus comprises a semiconductor laser having a plurality of radiative portions formed at different heights on a same substrate and a spot forming system for arranging beams from the plurality of radiative portions in the semiconductor laser to form a plurality of light spots on an information record medium for information record and reproduction. In the apparatus the spot forming system forms a first recording light spot and a first reproducing light spot on a first information track on the information record medium and forms a second recording light spot and a second reproducing light spot on a second information track different from the first information track on the information record medium. |
公开日期 | 1994-03-23 |
申请日期 | 1993-09-10 |
状态 | 失效 |
源URL | [http://ir.opt.ac.cn/handle/181661/59880] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | CANON KABUSHIKI KAISHA |
推荐引用方式 GB/T 7714 | KOYAMA, OSAMU, C/O CANON KABUSHIKI KAISHA,YAMAWAKI, TAKESHI, C/O CANON KABUSHIKI KAISHA. Optical recording/reproducing apparatus. EP0588575A2. 1994-03-23. |
入库方式: OAI收割
来源:西安光学精密机械研究所
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