JPS5774840A - Optical scanner - Google Patents

Optical scanner

Info

Publication number
JPS5774840A
JPS5774840A JP55150525A JP15052580A JPS5774840A JP S5774840 A JPS5774840 A JP S5774840A JP 55150525 A JP55150525 A JP 55150525A JP 15052580 A JP15052580 A JP 15052580A JP S5774840 A JPS5774840 A JP S5774840A
Authority
JP
Japan
Prior art keywords
driving
yoke
objective lens
coil
optical scanner
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.)
Pending
Application number
JP55150525A
Other languages
English (en)
Inventor
Shoji Oba
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 JP55150525A priority Critical patent/JPS5774840A/ja
Publication of JPS5774840A publication Critical patent/JPS5774840A/ja
Pending 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

  • Automatic Focus Adjustment (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP55150525A 1980-10-27 1980-10-27 Optical scanner Pending JPS5774840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55150525A JPS5774840A (en) 1980-10-27 1980-10-27 Optical scanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55150525A JPS5774840A (en) 1980-10-27 1980-10-27 Optical scanner

Publications (1)

Publication Number Publication Date
JPS5774840A true JPS5774840A (en) 1982-05-11

Family

ID=15498764

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55150525A Pending JPS5774840A (en) 1980-10-27 1980-10-27 Optical scanner

Country Status (1)

Country Link
JP (1) JPS5774840A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950038U (ja) * 1982-09-21 1984-04-03 フオスタ−電機株式会社 対物レンズ駆動装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950038U (ja) * 1982-09-21 1984-04-03 フオスタ−電機株式会社 対物レンズ駆動装置

Similar Documents

Publication Publication Date Title
GB1536203A (en) Optical focussing device
JPS57103131A (en) Biaxial driver
US4615585A (en) Optical focusing device
MY107051A (en) Objective lens driving devices.
JPS5774840A (en) Optical scanner
JPS643831A (en) Objective lens driving device
JPS5718035A (en) Optical recording and reproducing device
JPS57108806A (en) Automatic focus controller
JPS5718037A (en) Driving device of object lens
JPS54155802A (en) Objective lens driving device
JPS60136926A (ja) 対物レンズ駆動装置
ES8205338A1 (es) Una disposicion de lente para enfocar un rayo optico sobre un disco de informacion de video
US3924076A (en) Electromagnetic phono cartridge
JPS55146636A (en) Objective lens driver
JPS57117133A (en) Objective lens drive device
JPS5782234A (en) Optical head
JPS56117337A (en) Driving device for objective lens
JPS57191838A (en) Objective lens driver
KR930000840Y1 (ko) 광 픽업 구동장치
KR960015431A (ko) 광픽업 구동장치
JP2620221B2 (ja) 光学式ピックアップ用アクチュエータ
JPS5771533A (en) Optical scanner
JPS5753186A (en) Optical video disc player
KR960004565Y1 (ko) 스피커
JPS5793168A (en) Wire dot type printer head