JPS56119944A - Disc player - Google Patents

Disc player

Info

Publication number
JPS56119944A
JPS56119944A JP2383580A JP2383580A JPS56119944A JP S56119944 A JPS56119944 A JP S56119944A JP 2383580 A JP2383580 A JP 2383580A JP 2383580 A JP2383580 A JP 2383580A JP S56119944 A JPS56119944 A JP S56119944A
Authority
JP
Japan
Prior art keywords
magnetic circuit
coils
yoke
secured
disc player
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
JP2383580A
Other languages
English (en)
Japanese (ja)
Other versions
JPS645377B2 (enrdf_load_stackoverflow
Inventor
Satoru Kusaka
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
Priority to JP2383580A priority Critical patent/JPS56119944A/ja
Publication of JPS56119944A publication Critical patent/JPS56119944A/ja
Publication of JPS645377B2 publication Critical patent/JPS645377B2/ja
Granted 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)
JP2383580A 1980-02-27 1980-02-27 Disc player Granted JPS56119944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2383580A JPS56119944A (en) 1980-02-27 1980-02-27 Disc player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2383580A JPS56119944A (en) 1980-02-27 1980-02-27 Disc player

Publications (2)

Publication Number Publication Date
JPS56119944A true JPS56119944A (en) 1981-09-19
JPS645377B2 JPS645377B2 (enrdf_load_stackoverflow) 1989-01-30

Family

ID=12121440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2383580A Granted JPS56119944A (en) 1980-02-27 1980-02-27 Disc player

Country Status (1)

Country Link
JP (1) JPS56119944A (enrdf_load_stackoverflow)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493017A1 (fr) * 1980-10-24 1982-04-30 Sony Corp Ensemble de lecture pour un appareil de lecture optique d'une information enregistree sur un disque sous la forme d'une ou plusieurs pistes
FR2504302A1 (fr) * 1981-04-20 1982-10-22 Sony Corp Appareil de lecture d'un disque optique
JPS57198548A (en) * 1981-05-29 1982-12-06 Victor Co Of Japan Ltd Readout lens device
JPS58105437A (ja) * 1981-12-16 1983-06-23 Sharp Corp ピツクアツプ装置
JPS58105436A (ja) * 1981-12-16 1983-06-23 Sharp Corp ピツクアツプ装置
FR2521377A1 (fr) * 1982-01-28 1983-08-12 Ricoh Kk Appareil d'enregistrement et de lecture optique
JPS58146035A (ja) * 1982-02-23 1983-08-31 Foster Denki Kk 情報再生装置
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
JPS59112323U (ja) * 1983-01-13 1984-07-28 日本テクサ株式会社 対物レンズ駆動装置
US4482988A (en) * 1981-01-16 1984-11-13 Sony Corporation Objective lens mount and drive for optical disc player
JPS60201538A (ja) * 1984-03-22 1985-10-12 Sharp Corp 対物レンズ装置
US4547871A (en) * 1981-01-26 1985-10-15 Hitachi, Ltd. Two dimensional actuator for moving optical medium of scanning device
US4561081A (en) * 1981-07-10 1985-12-24 U.S. Philips Corporation Opto-electronic apparatus for inscribing and/or reading recording tracks by means of a radiation beam
US4592037A (en) * 1980-11-28 1986-05-27 Hitachi, Ltd. Device for displacing a pickup head in multi-axial directions
JPS61239439A (ja) * 1986-04-04 1986-10-24 Hitachi Ltd 対物レンズ駆動装置
JPS61278044A (ja) * 1985-05-31 1986-12-08 Matsushita Electric Ind Co Ltd 対物レンズ駆動装置
JPS62154238A (ja) * 1985-12-26 1987-07-09 Matsushita Electric Ind Co Ltd 対物レンズ支持装置
JPS6326844A (ja) * 1987-06-11 1988-02-04 Mitsubishi Electric Corp 光学式情報再生装置の集光手段支持装置
JPS6332736A (ja) * 1987-05-29 1988-02-12 Mitsubishi Electric Corp ディスク再生装置
US4745589A (en) * 1984-10-04 1988-05-17 Seiko Epson Kabushiki Kaisha Objective lens actuator having movements restricting control means for an optical head

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494007A (en) * 1978-01-05 1979-07-25 Olympus Optical Co Ltd Pickup for disc recorder recorded optically with information

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494007A (en) * 1978-01-05 1979-07-25 Olympus Optical Co Ltd Pickup for disc recorder recorded optically with information

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493017A1 (fr) * 1980-10-24 1982-04-30 Sony Corp Ensemble de lecture pour un appareil de lecture optique d'une information enregistree sur un disque sous la forme d'une ou plusieurs pistes
US4462096A (en) * 1980-10-24 1984-07-24 Sony Corporation Pickup assembly for disc player
US4592037A (en) * 1980-11-28 1986-05-27 Hitachi, Ltd. Device for displacing a pickup head in multi-axial directions
US4482988A (en) * 1981-01-16 1984-11-13 Sony Corporation Objective lens mount and drive for optical disc player
US4547871A (en) * 1981-01-26 1985-10-15 Hitachi, Ltd. Two dimensional actuator for moving optical medium of scanning device
FR2504302A1 (fr) * 1981-04-20 1982-10-22 Sony Corp Appareil de lecture d'un disque optique
JPS57198548A (en) * 1981-05-29 1982-12-06 Victor Co Of Japan Ltd Readout lens device
US4561081A (en) * 1981-07-10 1985-12-24 U.S. Philips Corporation Opto-electronic apparatus for inscribing and/or reading recording tracks by means of a radiation beam
JPS58105437A (ja) * 1981-12-16 1983-06-23 Sharp Corp ピツクアツプ装置
JPS58105436A (ja) * 1981-12-16 1983-06-23 Sharp Corp ピツクアツプ装置
FR2521377A1 (fr) * 1982-01-28 1983-08-12 Ricoh Kk Appareil d'enregistrement et de lecture optique
JPS58146035A (ja) * 1982-02-23 1983-08-31 Foster Denki Kk 情報再生装置
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
JPS59112323U (ja) * 1983-01-13 1984-07-28 日本テクサ株式会社 対物レンズ駆動装置
JPS60201538A (ja) * 1984-03-22 1985-10-12 Sharp Corp 対物レンズ装置
US4745589A (en) * 1984-10-04 1988-05-17 Seiko Epson Kabushiki Kaisha Objective lens actuator having movements restricting control means for an optical head
JPS61278044A (ja) * 1985-05-31 1986-12-08 Matsushita Electric Ind Co Ltd 対物レンズ駆動装置
JPS62154238A (ja) * 1985-12-26 1987-07-09 Matsushita Electric Ind Co Ltd 対物レンズ支持装置
JPS61239439A (ja) * 1986-04-04 1986-10-24 Hitachi Ltd 対物レンズ駆動装置
JPS6332736A (ja) * 1987-05-29 1988-02-12 Mitsubishi Electric Corp ディスク再生装置
JPS6326844A (ja) * 1987-06-11 1988-02-04 Mitsubishi Electric Corp 光学式情報再生装置の集光手段支持装置

Also Published As

Publication number Publication date
JPS645377B2 (enrdf_load_stackoverflow) 1989-01-30

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