DE3482921D1 - Optischer lesekopf mit antriebseinheit. - Google Patents
Optischer lesekopf mit antriebseinheit.Info
- Publication number
- DE3482921D1 DE3482921D1 DE8484109181T DE3482921T DE3482921D1 DE 3482921 D1 DE3482921 D1 DE 3482921D1 DE 8484109181 T DE8484109181 T DE 8484109181T DE 3482921 T DE3482921 T DE 3482921T DE 3482921 D1 DE3482921 D1 DE 3482921D1
- Authority
- DE
- Germany
- Prior art keywords
- drive unit
- reading head
- optical reading
- optical
- head
- 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 title 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58142254A JPS6035341A (ja) | 1983-08-03 | 1983-08-03 | 駆動装置 |
JP12105283U JPS6031730U (ja) | 1983-08-03 | 1983-08-03 | 駆動装置 |
JP1984007293U JPS60120519U (ja) | 1984-01-23 | 1984-01-23 | 光学ピツクアツプ |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3482921D1 true DE3482921D1 (de) | 1990-09-13 |
Family
ID=27277552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484109181T Expired - Lifetime DE3482921D1 (de) | 1983-08-03 | 1984-08-02 | Optischer lesekopf mit antriebseinheit. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4643522A (de) |
EP (1) | EP0133994B1 (de) |
CA (1) | CA1249744A (de) |
DE (1) | DE3482921D1 (de) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3683221D1 (de) * | 1985-08-14 | 1992-02-13 | Philips Patentverwaltung | Optische abtasteinheit. |
US4783775A (en) * | 1985-08-14 | 1988-11-08 | U.S. Philips Corporation | Driver for an objective of an optical scanning unit |
JPS62109237A (ja) * | 1985-11-08 | 1987-05-20 | Canon Inc | 光ヘツド装置 |
JPS62141646A (ja) * | 1985-12-17 | 1987-06-25 | Seiko Instr & Electronics Ltd | 対物レンズ駆動装置 |
KR900006182B1 (ko) * | 1986-03-04 | 1990-08-25 | 상요 덴기 가부시기가이샤 | 전기 기계 변환기 |
US4811320A (en) * | 1986-03-04 | 1989-03-07 | Sanyo Electric Co., Ltd. | Optical type pickup apparatus with lens holder supported by frame wires each having an end inserted into a frame hole |
US4868802A (en) * | 1986-07-28 | 1989-09-19 | Kabushiki Kaisha Toshiba | Magnetooptic recording and erasing head which performs biasing, tracking and focusing |
NL8602564A (nl) * | 1986-10-13 | 1988-05-02 | Philips Nv | Electro-optische aftastinrichting. |
JP2676342B2 (ja) * | 1987-04-17 | 1997-11-12 | パイオニア株式会社 | 光学式ピックアップの光学部品駆動装置 |
JPH0227526A (ja) * | 1988-07-15 | 1990-01-30 | Pioneer Electron Corp | 光学式デイスクプレーヤ |
JPH0725858Y2 (ja) * | 1988-08-15 | 1995-06-07 | パイオニア株式会社 | 光学式ピックアップの光学部品駆動装置 |
US6141300A (en) * | 1989-06-20 | 2000-10-31 | Discovision Associates | Optical actuator including lens assembly with optical axis having symmetric suspensory forces acting thereon and optical disc system including same |
US5265079A (en) | 1991-02-15 | 1993-11-23 | Applied Magnetics Corporation | Seek actuator for optical recording |
US5136558A (en) * | 1989-06-20 | 1992-08-04 | Applied Magnetics Corporation | Two axis electromagnetic actuator |
US5194721A (en) * | 1989-11-24 | 1993-03-16 | Optical Recording Corporation | Optical scanner |
US5416640A (en) * | 1989-11-24 | 1995-05-16 | Matsushita Electric Industrial Co., Ltd. | Objective actuator |
US5319497A (en) * | 1990-01-12 | 1994-06-07 | Matsushita Electric Industrial Co., Ltd. | Lens drive device with lens holder carrying drive flux generating magnets |
US5097361A (en) * | 1990-06-04 | 1992-03-17 | International Business Machines Corporation | Controlling position of a rotatable transducer in devices employing such transducers |
JPH0752511B2 (ja) * | 1991-01-22 | 1995-06-05 | 富士ゼロックス株式会社 | 光学的情報記録再生装置 |
US5677899A (en) | 1991-02-15 | 1997-10-14 | Discovision Associates | Method for moving carriage assembly from initial position to target position relative to storage medium |
US5808980A (en) * | 1991-02-15 | 1998-09-15 | Discovision Associates | Seek actuator for optical recording |
US5729511A (en) | 1991-02-15 | 1998-03-17 | Discovision Associates | Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal |
US6069857A (en) * | 1991-02-15 | 2000-05-30 | Discovision Associates | Optical disc system having improved circuitry for performing blank sector check on readable disc |
US6236625B1 (en) | 1991-02-15 | 2001-05-22 | Discovision Associates | Optical disc system having current monitoring circuit with controller for laser driver and method for operating same |
US5177640A (en) * | 1991-10-08 | 1993-01-05 | Applied Magnetics Corporation | Two-axis moving coil actuator |
KR960007895B1 (ko) * | 1993-11-29 | 1996-06-15 | 대우전자 주식회사 | 광학디스크플레이어용 광픽업엑츄에이터 |
US5920539A (en) * | 1995-01-25 | 1999-07-06 | Discovision Associates | Apparatus and method for suppression of electromagnetic emissions having a groove on an external surface for passing an electrical conductor |
US5748578A (en) * | 1995-01-25 | 1998-05-05 | Discovision Associates | Colpitts type oscillator having reduced ringing and improved optical disc system utilizing same |
US6434087B1 (en) | 1995-01-25 | 2002-08-13 | Discovision Associates | Optical disc system and method for controlling bias coil and light source to process information on a storage medium |
US6091684A (en) * | 1995-01-25 | 2000-07-18 | Discovision Associates | Optical disc system and method for changing the rotational rate of an information storage medium |
US6424472B1 (en) * | 2001-04-06 | 2002-07-23 | Wen Ching Chen | Lens assembly |
US6522477B2 (en) * | 2001-04-17 | 2003-02-18 | Karl Storz Imaging, Inc. | Endoscopic video camera with magnetic drive focusing |
JP2004110985A (ja) * | 2002-09-20 | 2004-04-08 | Pioneer Electronic Corp | アクチュエータ及び光ピックアップ装置 |
US7725014B2 (en) * | 2007-08-29 | 2010-05-25 | Hong Kong Applied Science and Technology Research Institute Company Limited | Actuator for linear motion and tilting motion |
CN201373938Y (zh) * | 2009-02-03 | 2009-12-30 | 力相光学股份有限公司 | 微小型磁浮式镜头驱动装置 |
CN101840127B (zh) * | 2009-03-21 | 2013-06-05 | 鸿富锦精密工业(深圳)有限公司 | 防震相机 |
CN101860166B (zh) * | 2009-04-08 | 2013-05-08 | 鸿富锦精密工业(深圳)有限公司 | 致动器及防震相机模组 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7904618A (nl) * | 1979-06-13 | 1980-12-16 | Philips Nv | Optische focusseerinrichting. |
GB2088646B (en) * | 1980-10-24 | 1984-09-12 | Sony Corp | Pick-up assemblies for disc players |
US4472024A (en) * | 1981-01-07 | 1984-09-18 | Olympus Optical Co. Ltd. | Apparatus for driving objective lens |
JPS57178233A (en) * | 1981-04-27 | 1982-11-02 | Sony Corp | Supporting structure of optical system |
JPS57195339A (en) * | 1981-05-27 | 1982-12-01 | Pioneer Electronic Corp | Objective lens driver |
JPS57210456A (en) * | 1981-06-22 | 1982-12-24 | Sony Corp | Objective lens device |
NL8103305A (nl) * | 1981-07-10 | 1983-02-01 | Philips Nv | Opto-elektronische inrichting voor het met een stralingsbundel inschrijven en/of uitlezen van registratiesporen. |
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 |
NL8104589A (nl) * | 1981-10-08 | 1983-05-02 | Philips Nv | Optische aftasteenheid. |
JPS58189846A (ja) * | 1982-04-30 | 1983-11-05 | Nec Home Electronics Ltd | 光学式ピツクアツプの対物レンズ駆動装置 |
JPS592238A (ja) * | 1982-06-25 | 1984-01-07 | Fujitsu Ltd | 光ヘツドの焦点サ−ボ機構 |
-
1984
- 1984-07-30 CA CA000459979A patent/CA1249744A/en not_active Expired
- 1984-07-30 US US06/635,607 patent/US4643522A/en not_active Expired - Lifetime
- 1984-08-02 DE DE8484109181T patent/DE3482921D1/de not_active Expired - Lifetime
- 1984-08-02 EP EP84109181A patent/EP0133994B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA1249744A (en) | 1989-02-07 |
EP0133994A3 (en) | 1986-04-23 |
US4643522A (en) | 1987-02-17 |
EP0133994B1 (de) | 1990-08-08 |
EP0133994A2 (de) | 1985-03-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |