JP4807398B2 - 光ピックアップ - Google Patents
光ピックアップ Download PDFInfo
- Publication number
- JP4807398B2 JP4807398B2 JP2008264841A JP2008264841A JP4807398B2 JP 4807398 B2 JP4807398 B2 JP 4807398B2 JP 2008264841 A JP2008264841 A JP 2008264841A JP 2008264841 A JP2008264841 A JP 2008264841A JP 4807398 B2 JP4807398 B2 JP 4807398B2
- Authority
- JP
- Japan
- Prior art keywords
- optical
- collision
- preventing member
- objective lens
- collision preventing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/121—Protecting the head, e.g. against dust or impact with the record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0933—Details of stationary parts
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0935—Details of the moving parts
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Description
11 光源
17 対物レンズ
32 レンズホルダ
36 衝突防止部材
36a 厚み方向の側面
37 固定部
70 光ディスク(光記録媒体)
70a 情報記録面
372 固定部の側面
373 切り欠き溝(切り欠き部)
d 厚み方向
Claims (2)
- 光源と、
前記光源からの光を光記録媒体の情報記録面に集光する対物レンズと、
前記対物レンズを保持するレンズホルダと、
前記レンズホルダに設けられて、前記光記録媒体と前記対物レンズとの衝突を防止する衝突防止部材と、を備える光ピックアップにおいて、
前記衝突防止部材は、直方体状のシート部材からなって、前記シート部材の厚み方向の側面が前記情報記録面と対向するように前記レンズホルダに配置され、
前記レンズホルダには、前記衝突防止部材を挿入して固定するための直方体状の挿入孔と、前記衝突防止部材を接着固定するための切り欠き部と、を備えた固定部が形成され、
前記接着固定は、前記切り欠き部の下部に接着剤を用いて行うことを特徴とする光ピックアップ。 - 前記衝突防止部材は、前記衝突防止部材が配置される位置を基準として、前記厚み方向が前記光記録媒体の回転方向と略平行となるように前記レンズホルダに配置されることを特徴とする請求項1に記載の光ピックアップ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008264841A JP4807398B2 (ja) | 2008-10-14 | 2008-10-14 | 光ピックアップ |
US12/574,187 US8483032B2 (en) | 2008-10-14 | 2009-10-06 | Optical pickup device |
EP09012716A EP2178085B1 (en) | 2008-10-14 | 2009-10-07 | Optical pickup device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008264841A JP4807398B2 (ja) | 2008-10-14 | 2008-10-14 | 光ピックアップ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010097626A JP2010097626A (ja) | 2010-04-30 |
JP4807398B2 true JP4807398B2 (ja) | 2011-11-02 |
Family
ID=41479383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008264841A Expired - Fee Related JP4807398B2 (ja) | 2008-10-14 | 2008-10-14 | 光ピックアップ |
Country Status (3)
Country | Link |
---|---|
US (1) | US8483032B2 (ja) |
EP (1) | EP2178085B1 (ja) |
JP (1) | JP4807398B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010192035A (ja) * | 2009-02-18 | 2010-09-02 | Funai Electric Co Ltd | 対物レンズアクチュエータ |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69600298D1 (de) * | 1995-03-31 | 1998-06-25 | Daewoo Electronics Co Ltd | Optisches Abtastgerät |
DE60039861D1 (de) | 1999-04-20 | 2008-09-25 | Samsung Electronics Co Ltd | Werbeverwaltungssystem für digitale videoströme |
JP2001209956A (ja) | 2000-01-27 | 2001-08-03 | Hitachi Ltd | 光ディスク装置 |
JP2001297478A (ja) | 2000-04-17 | 2001-10-26 | Matsushita Electric Ind Co Ltd | 対物レンズ駆動装置 |
JP2004185721A (ja) * | 2002-12-03 | 2004-07-02 | Sharp Corp | 光ピックアップ装置 |
JP2005317060A (ja) | 2004-04-27 | 2005-11-10 | Sharp Corp | 対物レンズ駆動装置および情報記録再生装置 |
JP2006004466A (ja) * | 2004-06-15 | 2006-01-05 | Tdk Corp | 対物レンズ、アクチュエータ、光ヘッド及び光記録再生装置 |
JP2007026507A (ja) * | 2005-07-14 | 2007-02-01 | Matsushita Electric Ind Co Ltd | 光ピックアップ装置 |
JP4577198B2 (ja) | 2005-12-05 | 2010-11-10 | パナソニック株式会社 | ディスク装置 |
JP2007048365A (ja) | 2005-08-09 | 2007-02-22 | Mitsumi Electric Co Ltd | 光ピックアップ |
JP2007066371A (ja) * | 2005-08-30 | 2007-03-15 | Matsushita Electric Ind Co Ltd | 情報再生装置 |
JP4187751B2 (ja) * | 2006-03-29 | 2008-11-26 | 日東電工株式会社 | 保護部材およびそれを用いた光ピックアップ装置 |
JP2007305179A (ja) * | 2006-05-09 | 2007-11-22 | Funai Electric Co Ltd | 対物レンズアクチュエータ及びそれを備えた光ピックアップ装置 |
JP2008016090A (ja) | 2006-07-04 | 2008-01-24 | Matsushita Electric Ind Co Ltd | 光ピックアップ装置及び光ディスクドライブ装置 |
JP2008047258A (ja) * | 2006-08-21 | 2008-02-28 | Funai Electric Co Ltd | 光ピックアップ装置 |
JP2008210458A (ja) * | 2007-02-27 | 2008-09-11 | Funai Electric Co Ltd | 対物レンズアクチュエータ及びそれを備えた光ピックアップ装置 |
-
2008
- 2008-10-14 JP JP2008264841A patent/JP4807398B2/ja not_active Expired - Fee Related
-
2009
- 2009-10-06 US US12/574,187 patent/US8483032B2/en not_active Expired - Fee Related
- 2009-10-07 EP EP09012716A patent/EP2178085B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2178085B1 (en) | 2012-12-12 |
US8483032B2 (en) | 2013-07-09 |
US20100091635A1 (en) | 2010-04-15 |
EP2178085A1 (en) | 2010-04-21 |
JP2010097626A (ja) | 2010-04-30 |
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