发明申请
- 专利标题: Recording apparatus
- 专利标题(中): 记录装置
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申请号: US10950119申请日: 2004-09-24
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公开(公告)号: US20050105453A1公开(公告)日: 2005-05-19
- 发明人: Nobuyuki Kasama , Norio Chiba , Yasuyuki Mitsuoka , Manabu Oumi , Kenji Kato , Takashi Niwa , Kunio Nakajima
- 申请人: Nobuyuki Kasama , Norio Chiba , Yasuyuki Mitsuoka , Manabu Oumi , Kenji Kato , Takashi Niwa , Kunio Nakajima
- 专利权人: SEIKO INSTRUMENTS INC.
- 当前专利权人: SEIKO INSTRUMENTS INC.
- 优先权: JP10-072786 19980320; JP10-291142 19981013; JP10-302266 19981023; JP11-016202 19990125
- 主分类号: G01N37/00
- IPC分类号: G01N37/00 ; G01Q60/18 ; G01Q80/00 ; G11B7/00 ; G11B7/005 ; G11B7/09 ; G11B7/135
摘要:
In a recording apparatus for reproducing information recorded on a recording medium by utilizing near-field light, the recording apparatus realizes reliable information reproduction with a simple structure. Illumination light 20 is illuminated to the recording medium 10 to create near-field light on a surface of the recording medium 10. The created near-field light is scattered by a microscopic aperture 12 formed in the aperture element 11 so that scattering light (propagation light) thereof is detected to create a reproduced signal. Derived from the created reproduced light a distance control signal representative of a distance between the microscopic aperture 12 and the recording medium 10. Based on the distance control signal, the aperture element 11 is controlled in position. Due to this, the microscopic aperture 12 is brought into proximity to the recording medium 10.
公开/授权文献
- US07042829B2 Recording apparatus 公开/授权日:2006-05-09
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