基本信息:
- 专利标题： 近场光发生元件、近场光头及信息记录再现装置
- 专利标题（英）：Near-field light generating element, near-field light head, and information recording and reproducing device
- 申请号：CN201210074958.6 申请日：2012-03-12
- 公开(公告)号：CN102682785A 公开(公告)日：2012-09-19
- 发明人： 平田雅一 , 千叶德男 , 大海学
- 申请人： 精工电子有限公司
- 申请人地址： 日本千叶县千叶市
- 专利权人： 精工电子有限公司
- 当前专利权人： 精工电子有限公司
- 当前专利权人地址： 日本千叶县千叶市
- 代理机构： 中国专利代理(香港)有限公司
- 代理人： 何欣亭; 王忠忠
- 优先权： 2011-054217 20110311 JP; 2011-283629 20111226 JP
- 主分类号： G11B5/31
- IPC分类号： G11B5/31
The invention provides a near-field light generating element, a near-field light head, and an information recording and reproducing device capable of shortening the light spot size of the near-field light. A metal film (71) is included which is placed between a core (23) and a cladding, propagates a laser beam along an interface between the core and the cladding (23), and generates a near-field light from the laser beam. The metal film (71) has a base portion (72) placed on one side surface of the core (23) along a propagation direction of the laser beam facing from one end side toward the other end side, and an extending portion (73) extended from the other end side of the base portion (72) to the other end side in the propagation direction rather than the core (23). The other end side of the extending portion (73) is exposed to the outside, and is formed with a top portion (77) projected toward the core (23) side when viewed from the propagation direction.
公开/授权文献:
- CN102682785B 近场光发生元件、近场光头及信息记录再现装置 公开/授权日：2017-03-01
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 |
| ------G11B5/00 | 借助于记录载体的激磁或退磁进行记录的；用磁性方法进行重现的；为此所用的记录载体 |
| --------G11B5/012 | .磁盘信息的记录、重现或抹除 |
| ----------G11B5/31 | ..应用薄膜的 |