JPS6233658B2 - - Google Patents

Info

Publication number
JPS6233658B2
JPS6233658B2 JP20699481A JP20699481A JPS6233658B2 JP S6233658 B2 JPS6233658 B2 JP S6233658B2 JP 20699481 A JP20699481 A JP 20699481A JP 20699481 A JP20699481 A JP 20699481A JP S6233658 B2 JPS6233658 B2 JP S6233658B2
Authority
JP
Japan
Prior art keywords
tracking
permanent magnet
focus
fixing base
plate spring
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
JP20699481A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58111137A (ja
Inventor
Tsutomu Matsui
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.)
Akai Electric Co Ltd
Original Assignee
Akai Electric 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 Akai Electric Co Ltd filed Critical Akai Electric Co Ltd
Priority to JP20699481A priority Critical patent/JPS58111137A/ja
Publication of JPS58111137A publication Critical patent/JPS58111137A/ja
Publication of JPS6233658B2 publication Critical patent/JPS6233658B2/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)
  • Automatic Focus Adjustment (AREA)
JP20699481A 1981-12-23 1981-12-23 光ピツクアツプ装置の対物レンズ上下左右移動装置 Granted JPS58111137A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20699481A JPS58111137A (ja) 1981-12-23 1981-12-23 光ピツクアツプ装置の対物レンズ上下左右移動装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20699481A JPS58111137A (ja) 1981-12-23 1981-12-23 光ピツクアツプ装置の対物レンズ上下左右移動装置

Publications (2)

Publication Number Publication Date
JPS58111137A JPS58111137A (ja) 1983-07-02
JPS6233658B2 true JPS6233658B2 (en]) 1987-07-22

Family

ID=16532420

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20699481A Granted JPS58111137A (ja) 1981-12-23 1981-12-23 光ピツクアツプ装置の対物レンズ上下左右移動装置

Country Status (1)

Country Link
JP (1) JPS58111137A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0158829U (en]) * 1987-10-09 1989-04-13

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6236736A (ja) * 1985-08-12 1987-02-17 Pioneer Electronic Corp 光学式ピツクアツプ装置
US5001694A (en) * 1986-05-06 1991-03-19 Pencom International Corp. Tracking and focus actuator for a holographic optical head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0158829U (en]) * 1987-10-09 1989-04-13

Also Published As

Publication number Publication date
JPS58111137A (ja) 1983-07-02

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