JP4289388B2 - 光ピックアップ及び光ディスク装置 - Google Patents
光ピックアップ及び光ディスク装置 Download PDFInfo
- Publication number
- JP4289388B2 JP4289388B2 JP2006334690A JP2006334690A JP4289388B2 JP 4289388 B2 JP4289388 B2 JP 4289388B2 JP 2006334690 A JP2006334690 A JP 2006334690A JP 2006334690 A JP2006334690 A JP 2006334690A JP 4289388 B2 JP4289388 B2 JP 4289388B2
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- objective
- lens
- optical
- focus
- 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
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- 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
-
- 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
- G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0956—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
-
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
-
- 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
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
-
- 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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/0857—Arrangements for mechanically moving the whole head
- G11B7/08582—Sled-type positioners
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
Claims (2)
- 互いに異なる仕様とされ、回転駆動される使用波長がそれぞれ400〜410nm、650〜660nm、760〜800nmとされる3種類の光ディスクの信号記録面に光ビームを集光する第1及び第2の対物レンズと、
上記第1及び第2の対物レンズを駆動する対物レンズ駆動装置とを備え、
上記対物レンズ駆動装置は、上記第1の対物レンズ及び第2の対物レンズが取り付けられ、少なくとも上記第1及び第2の対物レンズの光軸と略平行なフォーカス方向と、上記フォーカス方向と直交するトラッキング方向と、チルト方向とに移動されるレンズホルダと、
上記レンズホルダを少なくとも上記フォーカス方向及び上記トラッキング方向に移動可能に支持する支持部と、
上記第1の対物レンズと上記レンズホルダとの間に設けられ、上記フォーカス方向に直交する面内における任意の第1の方向の軸回り方向の上記第1の対物レンズの傾きを調整させる第1の調整手段と、
上記第2の対物レンズと上記レンズホルダとの間に設けられ、上記フォーカス方向に直交する面内で且つ上記第1の方向に略直交する第2の方向の軸回り方向の上記第2の対物レンズの傾きを調整させる第2の調整手段とを有し、
上記第1及び第2の対物レンズは、それぞれ上記第1及び第2の調整手段に傾きを調整されることにより、相対的な角度が調整される光ピックアップ。 - 使用波長がそれぞれ400〜410nm、650〜660nm、760〜800nmとされる3種類の光ディスクを保持して回転駆動する駆動手段と、
上記駆動手段によって回転駆動される光ディスクに対し情報信号の記録又は再生行う光ビームを照射するとともに、上記光ディスクから反射される反射光ビームを検出する光ピックアップとを有する光ディスク装置において、
上記光ピックアップは、互いに異なる仕様とされ、回転駆動される3種類の光ディスクの信号記録面に光ビームを集光する第1及び第2の対物レンズと、
上記第1及び第2の対物レンズを駆動する対物レンズ駆動装置とを備え、
上記対物レンズ駆動装置は、上記第1の対物レンズ及び第2の対物レンズが取り付けられ、少なくとも上記第1及び第2の対物レンズの光軸と略平行なフォーカス方向と、上記フォーカス方向と直交するトラッキング方向と、チルト方向とに移動されるレンズホルダと、
上記レンズホルダを少なくとも上記フォーカス方向及び上記トラッキング方向に移動可能に支持する支持部と、
上記第1の対物レンズと上記レンズホルダとの間に設けられ、上記フォーカス方向に直交する面内における任意の第1の方向の軸回り方向の上記第1の対物レンズの傾きを調整させる第1の調整手段と、
上記第2の対物レンズと上記レンズホルダとの間に設けられ、上記フォーカス方向に直交する面内で且つ上記第1の方向に略直交する第2の方向の軸回り方向の上記第2の対物レンズの傾きを調整させる第2の調整手段とを有し、
上記第1及び第2の対物レンズは、それぞれ上記第1及び第2の調整手段に傾きを調整されることにより、相対的な角度が調整される光ディスク装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006334690A JP4289388B2 (ja) | 2006-12-12 | 2006-12-12 | 光ピックアップ及び光ディスク装置 |
TW096138320A TWI359418B (en) | 2006-12-12 | 2007-10-12 | Objective lens drive, optical pickup, and optical |
US11/876,309 US7830759B2 (en) | 2006-12-12 | 2007-10-22 | Objective lens drive, optical pickup, and optical disc apparatus |
KR1020070128058A KR101422840B1 (ko) | 2006-12-12 | 2007-12-11 | 광 픽업 및 광 디스크 장치 |
CN2007101996151A CN101246706B (zh) | 2006-12-12 | 2007-12-11 | 物镜驱动器、光学拾取器及光盘设备 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006334690A JP4289388B2 (ja) | 2006-12-12 | 2006-12-12 | 光ピックアップ及び光ディスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008146775A JP2008146775A (ja) | 2008-06-26 |
JP4289388B2 true JP4289388B2 (ja) | 2009-07-01 |
Family
ID=39497860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006334690A Expired - Fee Related JP4289388B2 (ja) | 2006-12-12 | 2006-12-12 | 光ピックアップ及び光ディスク装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7830759B2 (ja) |
JP (1) | JP4289388B2 (ja) |
KR (1) | KR101422840B1 (ja) |
CN (1) | CN101246706B (ja) |
TW (1) | TWI359418B (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4859695B2 (ja) * | 2007-02-05 | 2012-01-25 | 三洋電機株式会社 | 光ピックアップ装置 |
JP5405771B2 (ja) * | 2008-07-04 | 2014-02-05 | 株式会社日立メディアエレクトロニクス | 光ピックアップ装置及び光ディスクドライブ装置。 |
US8362784B2 (en) * | 2009-06-22 | 2013-01-29 | Mitsubishi Electric Corporation | Capacitor capacitance diagnosis device and electric power apparatus equipped with capacitor capacitance diagnosis device |
JP2011044192A (ja) * | 2009-08-19 | 2011-03-03 | Sanyo Electric Co Ltd | 光ピックアップ装置、及び光ピックアップ装置の製造方法 |
KR20160027852A (ko) * | 2014-09-02 | 2016-03-10 | 삼성전기주식회사 | 렌즈의 틸트각 측정 및 보정 시스템 및 그 방법 |
US10359597B2 (en) * | 2016-08-24 | 2019-07-23 | Tdk Taiwan Corp. | Optical system |
US11243370B2 (en) | 2016-08-24 | 2022-02-08 | Tdk Taiwan Corp. | Optical system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3508005B2 (ja) | 1996-06-26 | 2004-03-22 | シャープ株式会社 | 光ディスク装置及びその対物レンズの傾き調整方法 |
KR100363154B1 (ko) * | 1998-08-13 | 2003-03-19 | 삼성전자 주식회사 | 광픽업의액츄에이터및그에따른구동코일권선방법 |
JPWO2005112012A1 (ja) * | 2004-05-14 | 2008-03-27 | ソニー株式会社 | 光ピックアップ及び光ディスク装置 |
KR100612014B1 (ko) * | 2004-06-29 | 2006-08-11 | 삼성전자주식회사 | 광픽업 및 렌즈 조립 장치 및 방법 |
KR20070087487A (ko) | 2004-12-16 | 2007-08-28 | 소니 가부시키가이샤 | 광 픽업장치 및 이 광 픽업장치를 이용한 광 디스크 장치와그 제어 방법 |
JP2008084368A (ja) * | 2006-09-26 | 2008-04-10 | 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 |
-
2006
- 2006-12-12 JP JP2006334690A patent/JP4289388B2/ja not_active Expired - Fee Related
-
2007
- 2007-10-12 TW TW096138320A patent/TWI359418B/zh not_active IP Right Cessation
- 2007-10-22 US US11/876,309 patent/US7830759B2/en not_active Expired - Fee Related
- 2007-12-11 CN CN2007101996151A patent/CN101246706B/zh not_active Expired - Fee Related
- 2007-12-11 KR KR1020070128058A patent/KR101422840B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN101246706A (zh) | 2008-08-20 |
TWI359418B (en) | 2012-03-01 |
CN101246706B (zh) | 2010-09-29 |
US20080137518A1 (en) | 2008-06-12 |
TW200837743A (en) | 2008-09-16 |
KR101422840B1 (ko) | 2014-07-24 |
JP2008146775A (ja) | 2008-06-26 |
KR20080054359A (ko) | 2008-06-17 |
US7830759B2 (en) | 2010-11-09 |
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