[go: up one dir, main page]

JPS5730127A - Movable light emitting element - Google Patents

Movable light emitting element

Info

Publication number
JPS5730127A
JPS5730127A JP10361180A JP10361180A JPS5730127A JP S5730127 A JPS5730127 A JP S5730127A JP 10361180 A JP10361180 A JP 10361180A JP 10361180 A JP10361180 A JP 10361180A JP S5730127 A JPS5730127 A JP S5730127A
Authority
JP
Japan
Prior art keywords
coils
vibration part
light emitting
emitting element
plane driving
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
JP10361180A
Other languages
Japanese (ja)
Other versions
JPH0353701B2 (en
Inventor
Takashi Miki
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.)
Nippon Columbia Co Ltd
Original Assignee
Nippon Columbia 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 Nippon Columbia Co Ltd filed Critical Nippon Columbia Co Ltd
Priority to JP10361180A priority Critical patent/JPS5730127A/en
Publication of JPS5730127A publication Critical patent/JPS5730127A/en
Publication of JPH0353701B2 publication Critical patent/JPH0353701B2/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
    • G11B7/081—Disposition or mounting of heads or light sources relatively to record carriers for time base error correction by moving the light beam
    • 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)

Abstract

PURPOSE:To drive a plane driving vibration part by providing the plane driving vibration part with coils together with a light emitting element and by flowing currents through those coils. CONSTITUTION:A light emitting element 1 is provided in the center of a plane driving vibration part 2 and around it, three coils 6 are also provided. Around the plane driving vibration part 2, a damper 9 is provided. Magnets 4 are arranged over and under the vibration part 2 and so magnetized that the center and outer circumference of each coil 6 have different polarities. A control signal for tracking or correcting jitters is composed and inputted to three coils 6. The coils 6 may be divided into tracking coils inputting low-frequency signals and jitter-correcting coils inputting high-frequency signals.
JP10361180A 1980-07-30 1980-07-30 Movable light emitting element Granted JPS5730127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10361180A JPS5730127A (en) 1980-07-30 1980-07-30 Movable light emitting element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10361180A JPS5730127A (en) 1980-07-30 1980-07-30 Movable light emitting element

Publications (2)

Publication Number Publication Date
JPS5730127A true JPS5730127A (en) 1982-02-18
JPH0353701B2 JPH0353701B2 (en) 1991-08-15

Family

ID=14358563

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10361180A Granted JPS5730127A (en) 1980-07-30 1980-07-30 Movable light emitting element

Country Status (1)

Country Link
JP (1) JPS5730127A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60187942A (en) * 1984-03-06 1985-09-25 Alps Electric Co Ltd Drive mechanism of optical pickup
CN1331134C (en) * 2002-10-02 2007-08-08 松下电器产业株式会社 Optical pck-up and optical disk device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5429609A (en) * 1977-08-09 1979-03-05 Victor Co Of Japan Ltd Moving mirror device in optical information recording medium disc reproducer
JPS54162506A (en) * 1978-06-14 1979-12-24 Hitachi Ltd Optical system video disc reproducer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5429609A (en) * 1977-08-09 1979-03-05 Victor Co Of Japan Ltd Moving mirror device in optical information recording medium disc reproducer
JPS54162506A (en) * 1978-06-14 1979-12-24 Hitachi Ltd Optical system video disc reproducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60187942A (en) * 1984-03-06 1985-09-25 Alps Electric Co Ltd Drive mechanism of optical pickup
CN1331134C (en) * 2002-10-02 2007-08-08 松下电器产业株式会社 Optical pck-up and optical disk device

Also Published As

Publication number Publication date
JPH0353701B2 (en) 1991-08-15

Similar Documents

Publication Publication Date Title
EP0360534A3 (en) Microwave plasma treatment apparatus
JPS56119944A (en) Disc player
JPS5730127A (en) Movable light emitting element
ES410589A1 (en) Magnet assembly
ES8607738A1 (en) Apparatus for magnetic field therapy with vector field coils.
JPS55163813A (en) Magnetic circuit
JPS5427995A (en) Magnetic circuit device
GB1229040A (en)
JPS567593A (en) Magnetic circuit for flat diaphragm speaker
JPS549611A (en) Magnetic disc apparatus
JPS5672599A (en) Detection system for deviation of vibration system of moving coil type loudspeaker
SU717458A1 (en) Magnetic liquid seal
JPS5750333A (en) Electromagnetic driving device
JPS6414736A (en) Optical driving device
JPS57169211A (en) Vibration suppressing device
JPS5440620A (en) Multi-element magnetic head device
JPS578928A (en) Three-dimensional driver
JPS56111161A (en) Tone arm drive device
JPS56120357A (en) Forming device for picture
JPS5571397A (en) Magnetic circuit for electric acoustic converter
JPS5749151A (en) Electromagnetic focussing type cathode-ray tube
JPS5642312A (en) Demagnetization
JPS5782207A (en) Permanent magnet erasing head
JPS5668100A (en) Moving coil type cartridge
JPS5728497A (en) Magnetic circuit for speaker