JPS56117338A - Driving device for objective lens - Google Patents

Driving device for objective lens

Info

Publication number
JPS56117338A
JPS56117338A JP1720980A JP1720980A JPS56117338A JP S56117338 A JPS56117338 A JP S56117338A JP 1720980 A JP1720980 A JP 1720980A JP 1720980 A JP1720980 A JP 1720980A JP S56117338 A JPS56117338 A JP S56117338A
Authority
JP
Japan
Prior art keywords
objective lens
movable
fixed
fixed yokes
movable member
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
JP1720980A
Other languages
English (en)
Japanese (ja)
Other versions
JPS639308B2 (enrdf_load_stackoverflow
Inventor
Toru Musha
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP1720980A priority Critical patent/JPS56117338A/ja
Publication of JPS56117338A publication Critical patent/JPS56117338A/ja
Publication of JPS639308B2 publication Critical patent/JPS639308B2/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
    • G11B7/0929—Electromechanical actuators for lens positioning for tracking only

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Automatic Focus Adjustment (AREA)
JP1720980A 1980-02-16 1980-02-16 Driving device for objective lens Granted JPS56117338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1720980A JPS56117338A (en) 1980-02-16 1980-02-16 Driving device for objective lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1720980A JPS56117338A (en) 1980-02-16 1980-02-16 Driving device for objective lens

Publications (2)

Publication Number Publication Date
JPS56117338A true JPS56117338A (en) 1981-09-14
JPS639308B2 JPS639308B2 (enrdf_load_stackoverflow) 1988-02-26

Family

ID=11937541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1720980A Granted JPS56117338A (en) 1980-02-16 1980-02-16 Driving device for objective lens

Country Status (1)

Country Link
JP (1) JPS56117338A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59193552A (ja) * 1983-04-18 1984-11-02 Sharp Corp 光集束位置制御装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59193552A (ja) * 1983-04-18 1984-11-02 Sharp Corp 光集束位置制御装置

Also Published As

Publication number Publication date
JPS639308B2 (enrdf_load_stackoverflow) 1988-02-26

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