JPS645377B2 - - Google Patents

Info

Publication number
JPS645377B2
JPS645377B2 JP2383580A JP2383580A JPS645377B2 JP S645377 B2 JPS645377 B2 JP S645377B2 JP 2383580 A JP2383580 A JP 2383580A JP 2383580 A JP2383580 A JP 2383580A JP S645377 B2 JPS645377 B2 JP S645377B2
Authority
JP
Japan
Prior art keywords
objective lens
coil
bobbin
tracking
yoke
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
JP2383580A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56119944A (en
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 JPS56119944A (en) 1981-09-19
JPS645377B2 true JPS645377B2 (OSRAM) 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 (OSRAM)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2088646B (en) * 1980-10-24 1984-09-12 Sony Corp Pick-up assemblies for disc players
US4592037A (en) * 1980-11-28 1986-05-27 Hitachi, Ltd. Device for displacing a pickup head in multi-axial directions
JPS57120240A (en) * 1981-01-16 1982-07-27 Sony Corp Optical disk player
JPS57122030U (OSRAM) * 1981-01-26 1982-07-29
JPS57176543A (en) * 1981-04-20 1982-10-29 Sony Corp Optical type track scanner
JPS57198548A (en) * 1981-05-29 1982-12-06 Victor Co Of Japan Ltd Readout 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.
JPS58105436A (ja) * 1981-12-16 1983-06-23 Sharp Corp ピツクアツプ装置
JPS58105437A (ja) * 1981-12-16 1983-06-23 Sharp Corp ピツクアツプ装置
DE3302918A1 (de) * 1982-01-28 1983-08-04 Ricoh Co., Ltd., Tokyo Optische aufzeichnungs- und/oder leseeinrichtung
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
JPH065580B2 (ja) * 1986-04-04 1994-01-19 株式会社日立製作所 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

Family Cites Families (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

Also Published As

Publication number Publication date
JPS56119944A (en) 1981-09-19

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