JPS59188850A - 光ピックアップ装置 - Google Patents

光ピックアップ装置

Info

Publication number
JPS59188850A
JPS59188850A JP58063881A JP6388183A JPS59188850A JP S59188850 A JPS59188850 A JP S59188850A JP 58063881 A JP58063881 A JP 58063881A JP 6388183 A JP6388183 A JP 6388183A JP S59188850 A JPS59188850 A JP S59188850A
Authority
JP
Japan
Prior art keywords
coil
disk
coils
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.)
Granted
Application number
JP58063881A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0445894B2 (enrdf_load_stackoverflow
Inventor
Kanji Nishii
西井　完治
Akifumi Nakada
中田　彬史
Akihiro Sakaguchi
彰洋 坂口
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 JP58063881A 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)
JP58063881A 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
JP58063881A 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
JP58063881A JPS59188850A (ja) 1983-04-12 1983-04-12 光ピックアップ装置

Publications (2)

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

Family

ID=13242072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58063881A 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 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02260140A (ja) * 1989-03-30 1990-10-22 Asahi Optical Co Ltd 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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02260140A (ja) * 1989-03-30 1990-10-22 Asahi Optical Co Ltd 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

Also Published As

Publication number Publication date
JPH0445894B2 (enrdf_load_stackoverflow) 1992-07-28

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