JPS5774836A - Pickup device - Google Patents

Pickup device

Info

Publication number
JPS5774836A
JPS5774836A JP14953080A JP14953080A JPS5774836A JP S5774836 A JPS5774836 A JP S5774836A JP 14953080 A JP14953080 A JP 14953080A JP 14953080 A JP14953080 A JP 14953080A JP S5774836 A JPS5774836 A JP S5774836A
Authority
JP
Japan
Prior art keywords
coil
coils
moving part
current
force
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
JP14953080A
Other languages
Japanese (ja)
Inventor
Satoru Kusaka
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP14953080A priority Critical patent/JPS5774836A/en
Priority to GB8131907A priority patent/GB2088646B/en
Priority to DE19813142106 priority patent/DE3142106A1/en
Priority to US06/314,738 priority patent/US4462096A/en
Priority to NL8104833A priority patent/NL8104833A/en
Priority to FR8120087A priority patent/FR2493017B1/en
Priority to CA000389672A priority patent/CA1165873A/en
Publication of JPS5774836A publication Critical patent/JPS5774836A/en
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

Abstract

PURPOSE:To obtain a pickup device which is small-sized and of a simple structure, by winding a coil round the moving part containing a bobbin, etc., placing it in the magnetic path, and directly moving and controlling the whole moving part in the three axial direction. CONSTITUTION:A coil 3 is provided and also 8 coils 4 meeting at right angles with this coil 3 are provided adjacently beyond adjacent parts 4a1-4a4, and on the circumference of these coils 3, 4, 4 magnets are placed at intervals of 90 deg.. When a current is supplied to the coil 3 in this state, the current is interlinked with magnetic fluxes B1-B4, therefore, force in the Z axis direction exerts on this coil 3. Also, when a current is supplied to the coils 4, since the current flowing in the adjacent parts 4a2, 4a4 intersects the magnetic fluxes B2, B4, force in the x axis direction exerts and since the current flowing in the adjacent parts 4a1, 4a3 intersects with the magnetic fluxes B1, B3, force in the Y axis direction operates. Accordingly, these coils 3, 4 are provided on the moving part of a pickup and the magnet 5 is fixed to the circumference, the moving part is controlled in the three axial direction.
JP14953080A 1980-10-24 1980-10-24 Pickup device Pending JPS5774836A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP14953080A JPS5774836A (en) 1980-10-24 1980-10-24 Pickup device
GB8131907A GB2088646B (en) 1980-10-24 1981-10-22 Pick-up assemblies for disc players
DE19813142106 DE3142106A1 (en) 1980-10-24 1981-10-23 RECORDING ARRANGEMENT FOR TURNTABLE
US06/314,738 US4462096A (en) 1980-10-24 1981-10-23 Pickup assembly for disc player
NL8104833A NL8104833A (en) 1980-10-24 1981-10-26 READER FOR RECORD PLAYER.
FR8120087A FR2493017B1 (en) 1980-10-24 1981-10-26 READING ASSEMBLY FOR AN OPTICAL READING APPARATUS OF INFORMATION RECORDED ON A DISC IN THE FORM OF ONE OR MORE TRACKS
CA000389672A CA1165873A (en) 1980-10-24 1981-11-09 Pickup assembly for disc player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14953080A JPS5774836A (en) 1980-10-24 1980-10-24 Pickup device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP63-30149A Division JPH011132A (en) 1988-02-12 Objective lens drive device

Publications (1)

Publication Number Publication Date
JPS5774836A true JPS5774836A (en) 1982-05-11

Family

ID=15477147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14953080A Pending JPS5774836A (en) 1980-10-24 1980-10-24 Pickup device

Country Status (1)

Country Link
JP (1) JPS5774836A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58123705A (en) * 1982-01-18 1983-07-23 Sharp Corp Electromagnetic driving apparatus
USRE33548E (en) * 1983-03-30 1991-03-05 Mitsubishi Denki Kabushiki Kaisha Deviation correction apparatus for optical disc light beams

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494007A (en) * 1978-01-05 1979-07-25 Olympus Optical Co Ltd Pickup for disc recorder recorded optically with information

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494007A (en) * 1978-01-05 1979-07-25 Olympus Optical Co Ltd Pickup for disc recorder recorded optically with information

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58123705A (en) * 1982-01-18 1983-07-23 Sharp Corp Electromagnetic driving apparatus
JPS6041444B2 (en) * 1982-01-18 1985-09-17 シャープ株式会社 electromagnetic drive device
USRE33548E (en) * 1983-03-30 1991-03-05 Mitsubishi Denki Kabushiki Kaisha Deviation correction apparatus for optical disc light beams

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