JPH0445894B2 - - Google Patents

Info

Publication number
JPH0445894B2
JPH0445894B2 JP58063881A JP6388183A JPH0445894B2 JP H0445894 B2 JPH0445894 B2 JP H0445894B2 JP 58063881 A JP58063881 A JP 58063881A JP 6388183 A JP6388183 A JP 6388183A JP H0445894 B2 JPH0445894 B2 JP H0445894B2
Authority
JP
Japan
Prior art keywords
coil
lens barrel
disk
tracking
focus
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
Application number
JP58063881A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59188850A (ja
Inventor
Kanji Nishii
Akifumi Nakada
Akihiro Sakaguchi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6388183A priority Critical patent/JPS59188850A/ja
Publication of JPS59188850A publication Critical patent/JPS59188850A/ja
Publication of JPH0445894B2 publication Critical patent/JPH0445894B2/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
    • G11B7/0935—Details of the moving parts

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP6388183A 1983-04-12 1983-04-12 光ピックアップ装置 Granted JPS59188850A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6388183A JPS59188850A (ja) 1983-04-12 1983-04-12 光ピックアップ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6388183A JPS59188850A (ja) 1983-04-12 1983-04-12 光ピックアップ装置

Publications (2)

Publication Number Publication Date
JPS59188850A JPS59188850A (ja) 1984-10-26
JPH0445894B2 true JPH0445894B2 (ru) 1992-07-28

Family

ID=13242072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6388183A Granted JPS59188850A (ja) 1983-04-12 1983-04-12 光ピックアップ装置

Country Status (1)

Country Link
JP (1) JPS59188850A (ru)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2537397B2 (ja) * 1989-03-30 1996-09-25 旭光学工業株式会社 光学式ピックアップ装置
US6377521B1 (en) 1998-08-14 2002-04-23 Sony Corporation Biaxial actuator, optical part and optical disk device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57198548A (en) * 1981-05-29 1982-12-06 Victor Co Of Japan Ltd Readout lens device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57198548A (en) * 1981-05-29 1982-12-06 Victor Co Of Japan Ltd Readout lens device

Also Published As

Publication number Publication date
JPS59188850A (ja) 1984-10-26

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