JPH0522297B2 - - Google Patents
Info
- Publication number
- JPH0522297B2 JPH0522297B2 JP58193957A JP19395783A JPH0522297B2 JP H0522297 B2 JPH0522297 B2 JP H0522297B2 JP 58193957 A JP58193957 A JP 58193957A JP 19395783 A JP19395783 A JP 19395783A JP H0522297 B2 JPH0522297 B2 JP H0522297B2
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- fixed
- permanent magnet
- outer frame
- cylindrical body
- 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 - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 27
- 238000007667 floating Methods 0.000 claims description 5
- 238000013016 damping Methods 0.000 description 8
- 238000005339 levitation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 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
- G11B7/081—Disposition or mounting of heads or light sources relatively to record carriers for time base error correction by moving the light beam
-
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19395783A JPS6085446A (ja) | 1983-10-17 | 1983-10-17 | 光学的情報記録再生装置の対物レンズ駆動装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19395783A JPS6085446A (ja) | 1983-10-17 | 1983-10-17 | 光学的情報記録再生装置の対物レンズ駆動装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6085446A JPS6085446A (ja) | 1985-05-14 |
JPH0522297B2 true JPH0522297B2 (zh) | 1993-03-29 |
Family
ID=16316568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19395783A Granted JPS6085446A (ja) | 1983-10-17 | 1983-10-17 | 光学的情報記録再生装置の対物レンズ駆動装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6085446A (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63244417A (ja) * | 1987-03-31 | 1988-10-11 | Toshiba Corp | 情報再生装置 |
US4857781A (en) * | 1988-07-13 | 1989-08-15 | Eastman Kodak Company | High-speed non-contact linear motor with magnetic levitation |
EP0990232B1 (en) * | 1998-04-17 | 2005-07-27 | Koninklijke Philips Electronics N.V. | Optical scanning device comprising a lens system with a compact actuator |
US7440201B2 (en) | 2003-04-16 | 2008-10-21 | Nidec Sankyo Corporation | Lens driving device and portable equipment with camera |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5782234A (en) * | 1980-11-11 | 1982-05-22 | Mitsubishi Electric Corp | Optical head |
JPS5817552A (ja) * | 1981-07-10 | 1983-02-01 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | オプト・エレクトロニツク装置 |
-
1983
- 1983-10-17 JP JP19395783A patent/JPS6085446A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5782234A (en) * | 1980-11-11 | 1982-05-22 | Mitsubishi Electric Corp | Optical head |
JPS5817552A (ja) * | 1981-07-10 | 1983-02-01 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | オプト・エレクトロニツク装置 |
Also Published As
Publication number | Publication date |
---|---|
JPS6085446A (ja) | 1985-05-14 |
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