CA1251079A - Optical pickup - Google Patents

Optical pickup

Info

Publication number
CA1251079A
CA1251079A CA000488969A CA488969A CA1251079A CA 1251079 A CA1251079 A CA 1251079A CA 000488969 A CA000488969 A CA 000488969A CA 488969 A CA488969 A CA 488969A CA 1251079 A CA1251079 A CA 1251079A
Authority
CA
Canada
Prior art keywords
objective lens
lens holder
optical pickup
support shaft
base
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
Application number
CA000488969A
Other languages
English (en)
French (fr)
Inventor
Masashi Nakamura
Yasunori Terayama
You Yoshitoshi
Kazuhiko Fujiie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
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 by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of CA1251079A publication Critical patent/CA1251079A/en
Expired 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
    • 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
    • G11B7/0933—Details of stationary parts
    • 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
    • G11B7/0932—Details of sprung supports

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Glass Compositions (AREA)
  • Optical Head (AREA)
  • Gyroscopes (AREA)
  • Die Bonding (AREA)
  • Surgical Instruments (AREA)
CA000488969A 1984-09-28 1985-08-19 Optical pickup Expired CA1251079A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP146806/84 1984-09-28
JP1984146806U JPH042420Y2 (US07652168-20100126-C00068.png) 1984-09-28 1984-09-28

Publications (1)

Publication Number Publication Date
CA1251079A true CA1251079A (en) 1989-03-14

Family

ID=15415948

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000488969A Expired CA1251079A (en) 1984-09-28 1985-08-19 Optical pickup

Country Status (7)

Country Link
US (1) US4687296A (US07652168-20100126-C00068.png)
EP (1) EP0176332B1 (US07652168-20100126-C00068.png)
JP (1) JPH042420Y2 (US07652168-20100126-C00068.png)
KR (1) KR920002028Y1 (US07652168-20100126-C00068.png)
AT (1) ATE44184T1 (US07652168-20100126-C00068.png)
CA (1) CA1251079A (US07652168-20100126-C00068.png)
DE (1) DE3571165D1 (US07652168-20100126-C00068.png)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62109237A (ja) * 1985-11-08 1987-05-20 Canon Inc 光ヘツド装置
DE3684124D1 (de) * 1985-12-27 1992-04-09 Mitsubishi Electric Corp Antriebsvorrichtung fuer ein objektiv.
NL8600437A (nl) * 1986-02-21 1987-09-16 Philips Nv Electro-optische inrichting.
NL8602564A (nl) * 1986-10-13 1988-05-02 Philips Nv Electro-optische aftastinrichting.
JPS63191422U (US07652168-20100126-C00068.png) * 1987-05-26 1988-12-09
JPS6448238A (en) * 1987-08-19 1989-02-22 Canon Kk Optical system driving device
US4998802A (en) * 1988-06-03 1991-03-12 Kabushiki Kaisha Sankyo Seiki Seisakusho Objective lens driving device in an optical pickup
JPH02216627A (ja) * 1989-02-15 1990-08-29 Mitsubishi Electric Corp 光ヘッド
JPH03205635A (ja) * 1989-10-17 1991-09-09 Ricoh Co Ltd 光学系駆動装置
US5182738A (en) * 1989-11-10 1993-01-26 Canon Kabushiki Kaisha Objective lens actuator using a balance weight therein
JPH04114325A (ja) * 1990-09-04 1992-04-15 Matsushita Electric Ind Co Ltd 光ディスク装置
US5177640A (en) * 1991-10-08 1993-01-05 Applied Magnetics Corporation Two-axis moving coil actuator
ES2152274T3 (es) * 1993-05-18 2001-02-01 Nec Corp Accionador para una cabeza optica.
JPH07244862A (ja) * 1994-03-07 1995-09-19 Sankyo Seiki Mfg Co Ltd 対物レンズ駆動装置
JPH0830991A (ja) * 1994-07-08 1996-02-02 Seiko Epson Corp 光ピックアップ装置
US5898652A (en) * 1994-07-08 1999-04-27 Seiko Epson Corporation Support structure for an optical pickup
US5721723A (en) * 1994-11-18 1998-02-24 Kabushiki Kaisha Toshiba Objective lens driving device, data recording device, and data reproducing device, all having driver force selectively 120 tutine and positioning the objective lenses
KR19990041882A (ko) * 1997-11-25 1999-06-15 전주범 씨디-디브이디 겸용 광픽업 액츄에이터
JP3749047B2 (ja) * 1999-08-27 2006-02-22 日本電産サンキョー株式会社 光ピックアップ装置
US7079014B2 (en) * 2004-05-08 2006-07-18 Scott Steinetz Digital sampling playback doorbell system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311711A (en) * 1963-07-29 1967-03-28 Mach Tronies Inc Resilient core holder for pressing head sections into alignment
US3554617A (en) * 1969-04-01 1971-01-12 Paul J Weaver Machine tools slide assembly
DE2007198C3 (de) * 1970-02-17 1985-01-24 Bogen Electronic GmbH, 1000 Berlin Magnetkopfanordnung mit einer Einrichtung zum Positionieren des Magnetkopfes
NL164689C (nl) * 1975-03-10 1981-01-15 Philips Nv Optische focusseerinrichting voor het focusseren van een stralingsbundel.
CH591641A5 (US07652168-20100126-C00068.png) * 1975-11-26 1977-09-30 Hydrel Ag
JPS57176543A (en) * 1981-04-20 1982-10-29 Sony Corp Optical type track scanner
JPS57178233A (en) * 1981-04-27 1982-11-02 Sony Corp Supporting structure of optical system
JPS57197755U (US07652168-20100126-C00068.png) * 1981-06-10 1982-12-15
JPS57210456A (en) * 1981-06-22 1982-12-24 Sony Corp Objective lens device
JPS59104735A (ja) * 1982-12-08 1984-06-16 Sony Corp 対物レンズ駆動装置
US4566089A (en) * 1983-03-30 1986-01-21 Mitsubishi Denki Kabushiki Kaisha Deviation correction apparatus for optical disc light beams
CA1208264A (en) * 1983-06-03 1986-07-22 William R. Heathe Sliding bearing

Also Published As

Publication number Publication date
KR920002028Y1 (ko) 1992-03-26
KR860004060U (ko) 1986-04-25
EP0176332B1 (en) 1989-06-21
DE3571165D1 (en) 1989-07-27
JPS6161620U (US07652168-20100126-C00068.png) 1986-04-25
ATE44184T1 (de) 1989-07-15
US4687296A (en) 1987-08-18
JPH042420Y2 (US07652168-20100126-C00068.png) 1992-01-28
EP0176332A1 (en) 1986-04-02

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Legal Events

Date Code Title Description
MKEX Expiry