JPS57138063A - Tracking actuator - Google Patents

Tracking actuator

Info

Publication number
JPS57138063A
JPS57138063A JP2377881A JP2377881A JPS57138063A JP S57138063 A JPS57138063 A JP S57138063A JP 2377881 A JP2377881 A JP 2377881A JP 2377881 A JP2377881 A JP 2377881A JP S57138063 A JPS57138063 A JP S57138063A
Authority
JP
Japan
Prior art keywords
arm
lens barrel
center
fitting
fitted
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
JP2377881A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6117053B2 (enrdf_load_stackoverflow
Inventor
Kunihiko Nakagawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2377881A priority Critical patent/JPS57138063A/ja
Publication of JPS57138063A publication Critical patent/JPS57138063A/ja
Publication of JPS6117053B2 publication Critical patent/JPS6117053B2/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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08576—Swinging-arm positioners

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
JP2377881A 1981-02-19 1981-02-19 Tracking actuator Granted JPS57138063A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2377881A JPS57138063A (en) 1981-02-19 1981-02-19 Tracking actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2377881A JPS57138063A (en) 1981-02-19 1981-02-19 Tracking actuator

Publications (2)

Publication Number Publication Date
JPS57138063A true JPS57138063A (en) 1982-08-26
JPS6117053B2 JPS6117053B2 (enrdf_load_stackoverflow) 1986-05-06

Family

ID=12119785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2377881A Granted JPS57138063A (en) 1981-02-19 1981-02-19 Tracking actuator

Country Status (1)

Country Link
JP (1) JPS57138063A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968846A (ja) * 1982-10-12 1984-04-18 Sanyo Electric Co Ltd 光学再生装置
US5233581A (en) * 1991-05-16 1993-08-03 Sharp Kabushiki Kaisha Optical-head drive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968846A (ja) * 1982-10-12 1984-04-18 Sanyo Electric Co Ltd 光学再生装置
US5233581A (en) * 1991-05-16 1993-08-03 Sharp Kabushiki Kaisha Optical-head drive

Also Published As

Publication number Publication date
JPS6117053B2 (enrdf_load_stackoverflow) 1986-05-06

Similar Documents

Publication Publication Date Title
EP0355640A3 (en) Focal length changeable camera
EP0343979A3 (en) Object lens driving device
EP0357056A3 (en) Camera system
JPS5614225A (en) Focusing device
JPS57138063A (en) Tracking actuator
ES483836A1 (es) Perfeccionamientos introducidos en una lente de contacto.
ATE24780T1 (de) Weitwinkelige optische vorrichtung.
JPS5718037A (en) Driving device of object lens
JPS57176016A (en) Ultrasonic microscope
JPS5741890A (en) Driving device for welding gun
US5072251A (en) Blur detecting apparatus
JP2592949B2 (ja) 絞り装置
JPS60241031A (ja) 液晶調光装置付テレビカメラ
JPS62181922U (enrdf_load_stackoverflow)
JPS57208643A (en) Optical pickup device
JPS5646219A (en) Optical device of variable magnification
JPS57133415A (en) Lens switching mechanism
SU669309A1 (ru) Светосильный объектив
JPS61196227U (enrdf_load_stackoverflow)
SU1232884A1 (ru) Шаровой вариатор
JPS572010A (en) Lens barrel
JPS6488927A (en) Objective lens supporting device
SU694286A1 (ru) Устройство дл обработки сферических поверхностей
JPS5937077A (ja) 関節型ロボツトの駆動機構
RU1773400C (ru) Способ изготовлени биологических линз из неконсервированной донорской роговицы