发明名称 |
Near-field optical head |
摘要 |
A near-field optical head has a tip end having an edge portion defined by two intersecting planes. Information recorded on a recording medium is reproduced in accordance with an intensity of scattered light of an evanescent field generated when the recording medium is illuminated with light and the tip end of the optical head is brought proximate the recording medium at an interval equal to or smaller than a wavelength of light therebetween. |
申请公布号 |
US6429419(B1) |
申请公布日期 |
2002.08.06 |
申请号 |
US20000423850 |
申请日期 |
2000.03.20 |
申请人 |
SEIKO INSTRUMENTS INC. |
发明人 |
MITSUOKA YASUYUKI;CHIBA NORIO;KASAMA NOBUYUKI;NIWA TAKASHI;NAKAJIMA KUNIO |
分类号 |
G11B7/135;G01N37/00;G01Q60/22;G01Q80/00;G11B7/12;G11B7/22;(IPC1-7):H01J3/14;H01J5/16;H01J40/14 |
主分类号 |
G11B7/135 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|