Optical head device, optical information device, computer, optical disc player, optical disc server, car navigation system and optical disc recorder
文献类型：专利
| 作者 | SANO, KOUSEI; KOMMA, YOSHIAKI; WAKABAYASHI, KANJI; WADA, HIDENORI; MATSUZAKI, KEIICHI; TANAKA, TOSHIYASU |
| 发表日期 | 2007-09-07 |
| 专利号 | WO2007099842A1 |
| 著作权人 | MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
| 国家 | 世界知识产权组织 |
| 文献子类 | 发明申请 |
| 其他题名 | Optical head device, optical information device, computer, optical disc player, optical disc server, car navigation system and optical disc recorder |
| 英文摘要 | An optical head device is provided with a blue semiconductor laser (203) which emits light having a first wavelength; an LDPD module (205) for DVD, which emits light having a second wavelength; a first objective lens (201) for collecting light from the blue semiconductor laser (203) to an optical disc (707); a second objective lens (202) for collecting light from the LDPD module (205) to an optical disc (707); a photodetector (204) for detecting light returned from the optical disc (707); and a laser driver (410) for controlling emission of the blue semiconductor laser (203) and that of the LDPD module (205). A laser driver (410) is arranged on a narrower angle side where an angle formed between a virtual first straight line (L1), which connects the revolution center of a motor (112) with the blue semiconductor laser (203), and a virtual second straight line (L2), which connects the revolution center of the motor (112) with the LDPD module (205), is narrower. The laser driver (410) is positioned closer to the optical disc (707) than the blue semiconductor laser (203) and the LDPD module (205). |
| 公开日期 | 2007-09-07 |
| 申请日期 | 2007-02-22 |
| 状态 | 未确认 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/58018]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
| 推荐引用方式 GB/T 7714 | SANO, KOUSEI,KOMMA, YOSHIAKI,WAKABAYASHI, KANJI,et al. Optical head device, optical information device, computer, optical disc player, optical disc server, car navigation system and optical disc recorder. WO2007099842A1. 2007-09-07. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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