基本信息:
- 专利标题： OPTICAL HEAD AND OPTICAL RECORDER
- 专利标题（中）：光学头和光学记录仪
- 申请号：EP97905471.5 申请日：1997-03-10
- 公开(公告)号：EP0831471B1 公开(公告)日：2003-12-03
- 发明人： YONEKUBO, Masatoshi , ARIMURA, Toshio , MIYAZAWA, Takao
- 申请人： SEIKO EPSON CORPORATION
- 申请人地址： 4-1, Nishi-shinjuku 2-chome, Shinjuku-ku Tokyo 163 JP
- 专利权人： SEIKO EPSON CORPORATION
- 当前专利权人： SEIKO EPSON CORPORATION
- 当前专利权人地址： 4-1, Nishi-shinjuku 2-chome, Shinjuku-ku Tokyo 163 JP
- 代理机构： Sturt, Clifford Mark
- 优先权： JP6149496 19960318
- 国际公布： WO97035306 19970925
- 主分类号： G11B7/135
- IPC分类号： G11B7/135 ; G11B7/09 ; G11B7/125
摘要：
An optical head and an optical recorder with which data can be recorded/reproduced onto/from a conventional CD-R without a problem and, further, data can be recorded/reproduced onto/from an optical recording medium of DVD standard which meets the requirements of the high recording density by employing a semiconductor laser beam which has a relatively longer wavelength than the track pitch of the optical recording medium and the optical super-resolution technique. Moreover, since a semiconductor laser beam which has a relatively longer wavelength than the track pitch of the optical recording medium can be employed by the optical head and the optical recorder, the limitation of the high density recording can be broken through and the optical pickup device and the optical recorder can record/reproduce data of the high recording density at a low cost and with the high reliability and can meet the requirements of the much higher recording density in future.
公开/授权文献:
- EP0831471A1 OPTICAL HEAD AND OPTICAL RECORDER 公开/授权日：1998-03-25
IPC结构图谱:
| G | 物理 |
| --G11 | 信息存储 |
| ----G11B | 基于记录载体和换能器之间的相对运动而实现的信息存储 |
| ------G11B7/00 | 用光学方法，例如，用光辐射的热射束记录用低功率光束重现的；为此所用的记录载体 |
| --------G11B7/002 | .按载体形状区分的记录、重现或抹除系统 |
| ----------G11B7/135 | ..将光束从光源引导到记录载体上去或从记录载体引导到检测器上去的装置 |