JPH0230120U - - Google Patents

Info

Publication number
JPH0230120U
JPH0230120U JP1988107478U JP10747888U JPH0230120U JP H0230120 U JPH0230120 U JP H0230120U JP 1988107478 U JP1988107478 U JP 1988107478U JP 10747888 U JP10747888 U JP 10747888U JP H0230120 U JPH0230120 U JP H0230120U
Authority
JP
Japan
Prior art keywords
magnetic pole
optical
driving device
magnetic
magnet
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
Application number
JP1988107478U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0725858Y2 (ja
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1988107478U priority Critical patent/JPH0725858Y2/ja
Priority to EP89306707A priority patent/EP0355963B1/en
Priority to US07/374,803 priority patent/US5043972A/en
Priority to DE68912687T priority patent/DE68912687T2/de
Publication of JPH0230120U publication Critical patent/JPH0230120U/ja
Application granted granted Critical
Publication of JPH0725858Y2 publication Critical patent/JPH0725858Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP1988107478U 1988-08-15 1988-08-15 光学式ピックアップの光学部品駆動装置 Expired - Lifetime JPH0725858Y2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1988107478U JPH0725858Y2 (ja) 1988-08-15 1988-08-15 光学式ピックアップの光学部品駆動装置
EP89306707A EP0355963B1 (en) 1988-08-15 1989-07-03 Optical component-driving device for optical pickup
US07/374,803 US5043972A (en) 1988-08-15 1989-07-03 Optical component-driving device for optical pickup
DE68912687T DE68912687T2 (de) 1988-08-15 1989-07-03 Antriebsvorrichtung für optische Bestandteile für eine optische Abtasteinheit.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988107478U JPH0725858Y2 (ja) 1988-08-15 1988-08-15 光学式ピックアップの光学部品駆動装置

Publications (2)

Publication Number Publication Date
JPH0230120U true JPH0230120U (US20080094685A1-20080424-C00004.png) 1990-02-26
JPH0725858Y2 JPH0725858Y2 (ja) 1995-06-07

Family

ID=14460229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988107478U Expired - Lifetime JPH0725858Y2 (ja) 1988-08-15 1988-08-15 光学式ピックアップの光学部品駆動装置

Country Status (4)

Country Link
US (1) US5043972A (US20080094685A1-20080424-C00004.png)
EP (1) EP0355963B1 (US20080094685A1-20080424-C00004.png)
JP (1) JPH0725858Y2 (US20080094685A1-20080424-C00004.png)
DE (1) DE68912687T2 (US20080094685A1-20080424-C00004.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003015009A (ja) * 2001-07-04 2003-01-15 Olympus Optical Co Ltd 光学素子のアクチュエータ
JP2003045720A (ja) * 2001-07-31 2003-02-14 Pioneer Electronic Corp アクチュエータ用マグネット、アクチュエータ、および、着磁装置
JP2009283129A (ja) * 2009-08-31 2009-12-03 Pioneer Electronic Corp レンズ駆動装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5267229A (en) * 1990-10-12 1993-11-30 Olympus Optical Co., Ltd. Optical element drive apparatus
DE69319773T2 (de) * 1992-03-31 1999-01-07 Canon Kk Magnetkopfverwendende magneto-optische Informationsaufnahme und -wiedergabegerät und -verfahren
JPH076302A (ja) * 1993-06-16 1995-01-10 Teac Corp 光磁気ディスク装置の外部磁界印加装置
US20030016597A1 (en) * 2001-07-18 2003-01-23 Takashi Haruguchi Actuator apparatus for optical pickup having tilt control

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5688666A (en) * 1979-10-17 1981-07-18 Zeiss Jena Veb Carl Twoocoordinate stepper motor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568142A (en) * 1982-04-26 1986-02-04 Hitachi, Ltd. Objective lens drive apparatus
CA1208361A (en) * 1983-01-25 1986-07-22 Yoshikazu Fujii Optical focus position control in optical disc apparatus
US4643522A (en) * 1983-08-03 1987-02-17 Sony Corporation Optical pickup having a driving unit for moving objective lens
JPS61139947A (ja) * 1984-12-11 1986-06-27 Olympus Optical Co Ltd 光ヘツド
KR900004619B1 (ko) * 1985-10-23 1990-06-30 가부시기 가이샤 히다찌 세이사꾸쇼 대물렌즈 구동장치
US4750164A (en) * 1985-12-09 1988-06-07 Canon Kabushiki Kaisha Optical system driving device
US4842392A (en) * 1986-05-26 1989-06-27 Matsushita Electric Industrial Co., Ltd. Objective lens driving unit
JPS63257927A (ja) * 1987-04-15 1988-10-25 Pioneer Electronic Corp ピツクアツプアクチユエ−タ
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5688666A (en) * 1979-10-17 1981-07-18 Zeiss Jena Veb Carl Twoocoordinate stepper motor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003015009A (ja) * 2001-07-04 2003-01-15 Olympus Optical Co Ltd 光学素子のアクチュエータ
JP2003045720A (ja) * 2001-07-31 2003-02-14 Pioneer Electronic Corp アクチュエータ用マグネット、アクチュエータ、および、着磁装置
JP4522027B2 (ja) * 2001-07-31 2010-08-11 パイオニア株式会社 アクチュエータ用マグネット、アクチュエータ、および、着磁装置
JP2009283129A (ja) * 2009-08-31 2009-12-03 Pioneer Electronic Corp レンズ駆動装置
JP4686626B2 (ja) * 2009-08-31 2011-05-25 パイオニア株式会社 レンズ駆動装置

Also Published As

Publication number Publication date
US5043972A (en) 1991-08-27
EP0355963A3 (en) 1990-11-14
DE68912687T2 (de) 1994-08-11
DE68912687D1 (de) 1994-03-10
EP0355963B1 (en) 1994-01-26
JPH0725858Y2 (ja) 1995-06-07
EP0355963A2 (en) 1990-02-28

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