JPS643831A - Objective lens driving device - Google Patents
Objective lens driving deviceInfo
- Publication number
- JPS643831A JPS643831A JP62158043A JP15804387A JPS643831A JP S643831 A JPS643831 A JP S643831A JP 62158043 A JP62158043 A JP 62158043A JP 15804387 A JP15804387 A JP 15804387A JP S643831 A JPS643831 A JP S643831A
- Authority
- JP
- Japan
- Prior art keywords
- control
- track
- permanent magnet
- movable holder
- coil
- 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.)
- Granted
Links
- 230000007935 neutral effect Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
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
- G11B7/08—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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62158043A JPH0750528B2 (ja) | 1987-06-25 | 1987-06-25 | 対物レンズ駆動装置 |
KR1019890700196A KR890702190A (ko) | 1987-06-25 | 1988-06-24 | 대물렌즈 구동장치 |
EP88906031A EP0322462B1 (en) | 1987-06-25 | 1988-06-24 | Objective lens driving device |
US07/329,899 US5105405A (en) | 1987-06-25 | 1988-06-24 | Objective lens driving device |
PCT/JP1988/000627 WO1988010492A1 (en) | 1987-06-25 | 1988-06-24 | Objective lens driving device |
DE3885075T DE3885075T2 (de) | 1987-06-25 | 1988-06-24 | Antriebsanordnung einer objektivlinse. |
KR898970196A KR910007911B1 (en) | 1987-06-25 | 1989-02-02 | Objective lens driving device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62158043A JPH0750528B2 (ja) | 1987-06-25 | 1987-06-25 | 対物レンズ駆動装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS643831A true JPS643831A (en) | 1989-01-09 |
JPH0750528B2 JPH0750528B2 (ja) | 1995-05-31 |
Family
ID=15663041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62158043A Expired - Lifetime JPH0750528B2 (ja) | 1987-06-25 | 1987-06-25 | 対物レンズ駆動装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5105405A (ja) |
EP (1) | EP0322462B1 (ja) |
JP (1) | JPH0750528B2 (ja) |
KR (1) | KR890702190A (ja) |
DE (1) | DE3885075T2 (ja) |
WO (1) | WO1988010492A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6888689B2 (en) | 2002-03-19 | 2005-05-03 | Mitsubishi Denki Kabushiki Kaisha | Objective lens driving apparatus |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR920022223A (ko) * | 1991-05-13 | 1992-12-19 | 강진구 | 광학계 구동장치 |
US5592459A (en) * | 1993-12-27 | 1997-01-07 | Kabushiki Kaisha Toshiba | Optical head device having electro-magnetically rotatable and straight movable members |
US5920437A (en) * | 1997-05-08 | 1999-07-06 | Sankyo Seiki Mfg. Co., Ltd. | Objective lens driving apparatus |
JP3059141B2 (ja) * | 1998-09-17 | 2000-07-04 | 三星電子株式会社 | ピックアップアクチュエータ |
JP4395694B2 (ja) * | 2001-06-14 | 2010-01-13 | ソニー株式会社 | 対物レンズ駆動装置及びこれを備えたディスクドライブ装置 |
JP4319797B2 (ja) | 2001-11-12 | 2009-08-26 | 三菱電機株式会社 | 対物レンズ駆動装置 |
US7285879B2 (en) * | 2004-08-09 | 2007-10-23 | Mitsumi Electric Co., Ltd. | Autofocus actuator |
JP4551863B2 (ja) | 2005-10-21 | 2010-09-29 | シコー株式会社 | レンズ駆動装置 |
WO2009001801A1 (ja) * | 2007-06-28 | 2008-12-31 | Hitachi Metals, Ltd. | R-tm-b系ラジアル異方性リング磁石、その製造方法、及びそれを製造するための金型、並びにブラシレスモータ用ロータ |
US8593743B2 (en) * | 2011-07-19 | 2013-11-26 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Magnetic structure for compact imaging device |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0237129Y2 (ja) * | 1980-11-11 | 1990-10-08 | ||
JPS57147143A (en) * | 1981-03-07 | 1982-09-10 | Olympus Optical Co Ltd | Objective lens driving device |
JPS57176543A (en) * | 1981-04-20 | 1982-10-29 | Sony Corp | Optical type track scanner |
US4507764A (en) * | 1981-08-25 | 1985-03-26 | Olympus Optical Co., Ltd. | Objective lens drive device with tracking error correction with flux of opposite direction |
JPS59104735A (ja) * | 1982-12-08 | 1984-06-16 | Sony Corp | 対物レンズ駆動装置 |
US4696566A (en) * | 1984-02-08 | 1987-09-29 | Sharp Kabushiki Kaisha | Three-dimensional driving arrangement |
DE3574302D1 (en) * | 1984-10-02 | 1989-12-21 | Toshiba Kk | Optical head apparatus for recording and reproducing data on a recording medium |
JPS61208641A (ja) * | 1985-03-13 | 1986-09-17 | Olympus Optical Co Ltd | 光学的情報記録再生装置 |
NL8502872A (nl) * | 1985-10-22 | 1987-05-18 | Philips Nv | Electro-magnetische aandrijfeenheid met zwenkbaar anker. |
JPS62102434A (ja) * | 1985-10-29 | 1987-05-12 | Canon Inc | 光学系駆動装置 |
JPS62107446A (ja) * | 1985-11-05 | 1987-05-18 | Seiko Instr & Electronics Ltd | 対物レンズ駆動装置 |
JPS62141646A (ja) * | 1985-12-17 | 1987-06-25 | Seiko Instr & Electronics Ltd | 対物レンズ駆動装置 |
EP0228055B1 (en) * | 1985-12-27 | 1992-03-04 | Mitsubishi Denki Kabushiki Kaisha | Driving equipment for objective lens |
NL8602564A (nl) * | 1986-10-13 | 1988-05-02 | Philips Nv | Electro-optische aftastinrichting. |
US4799766A (en) * | 1988-03-15 | 1989-01-24 | Eastman Kodak Company | Objective lens support and positioning system |
-
1987
- 1987-06-25 JP JP62158043A patent/JPH0750528B2/ja not_active Expired - Lifetime
-
1988
- 1988-06-24 US US07/329,899 patent/US5105405A/en not_active Expired - Lifetime
- 1988-06-24 WO PCT/JP1988/000627 patent/WO1988010492A1/ja active IP Right Grant
- 1988-06-24 DE DE3885075T patent/DE3885075T2/de not_active Expired - Lifetime
- 1988-06-24 KR KR1019890700196A patent/KR890702190A/ko not_active IP Right Cessation
- 1988-06-24 EP EP88906031A patent/EP0322462B1/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6888689B2 (en) | 2002-03-19 | 2005-05-03 | Mitsubishi Denki Kabushiki Kaisha | Objective lens driving apparatus |
US6894850B2 (en) | 2002-03-19 | 2005-05-17 | Mitsubishi Denki Kabushiki Kaisha | Objective lens driving apparatus |
US7031234B2 (en) | 2002-03-19 | 2006-04-18 | Mitsubishi Denki Kabushiki Kaisha | Objective lens driving apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0750528B2 (ja) | 1995-05-31 |
EP0322462A4 (en) | 1990-11-28 |
EP0322462A1 (en) | 1989-07-05 |
DE3885075T2 (de) | 1994-05-19 |
EP0322462B1 (en) | 1993-10-20 |
DE3885075D1 (de) | 1993-11-25 |
KR890702190A (ko) | 1989-12-23 |
WO1988010492A1 (en) | 1988-12-29 |
US5105405A (en) | 1992-04-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080531 Year of fee payment: 13 |