JPS5718035A - Optical recording and reproducing device - Google Patents

Optical recording and reproducing device

Info

Publication number
JPS5718035A
JPS5718035A JP9149080A JP9149080A JPS5718035A JP S5718035 A JPS5718035 A JP S5718035A JP 9149080 A JP9149080 A JP 9149080A JP 9149080 A JP9149080 A JP 9149080A JP S5718035 A JPS5718035 A JP S5718035A
Authority
JP
Japan
Prior art keywords
fixed
coil
shaft
circumference surface
optical block
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
JP9149080A
Other languages
Japanese (ja)
Inventor
Eiichi Hanakawa
Toru Nakamura
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 JP9149080A priority Critical patent/JPS5718035A/en
Publication of JPS5718035A publication Critical patent/JPS5718035A/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
    • 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
    • G11B7/08582—Sled-type positioners

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To avoid an effect of the light vignetting or the like caused by an object lens, by using the optical block feed mechanism also for a tracking servo. CONSTITUTION:A cylindrical magnet 17 magnetized in its radius direction is fixed across a guide shafts 16 which are set in parallel to each other. A cylindrical yoke 18 is fixed on the outer circumference surface of the magnet 17, and the radial line of magnetic force is generated between the shaft 16 and the inner circumference surface of the yoke 18. The driving force is produced toward the shaft 16 by flowing the current to a coil 20 wound round a bobbin 19. Thus the coil 20 moves an optical block 13 fixed at the center of an attachment stage 22 and also ensures tracking control as well.
JP9149080A 1980-07-03 1980-07-03 Optical recording and reproducing device Pending JPS5718035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9149080A JPS5718035A (en) 1980-07-03 1980-07-03 Optical recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9149080A JPS5718035A (en) 1980-07-03 1980-07-03 Optical recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS5718035A true JPS5718035A (en) 1982-01-29

Family

ID=14027852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9149080A Pending JPS5718035A (en) 1980-07-03 1980-07-03 Optical recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS5718035A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59135638A (en) * 1982-12-24 1984-08-03 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Motor apparatus for translation
US4607913A (en) * 1983-02-14 1986-08-26 U.S. Philips Corporation Electrodynamic device for translating a lens system
USRE32285E (en) * 1982-02-26 1986-11-11 Atasi Corporation Linear actuator for a memory storage apparatus
JPS6239223U (en) * 1985-08-28 1987-03-09
JPS62293523A (en) * 1986-06-13 1987-12-21 Hamamatsu Photonics Kk Laser pickup device for optical disk
US4743987A (en) * 1982-02-26 1988-05-10 Atasi Corporation Linear actuator for a memory storage apparatus
US4811320A (en) * 1986-03-04 1989-03-07 Sanyo Electric Co., Ltd. Optical type pickup apparatus with lens holder supported by frame wires each having an end inserted into a frame hole
US4823219A (en) * 1986-05-27 1989-04-18 Mitsubishi Denki Kabushiki Kaisha Carriage recording head sandwiched by electromagnetic coil sections
US5317552A (en) * 1989-06-13 1994-05-31 Kabushiki Kaisha Toshiba Linear actuator for driving an optical head incorporated in an optical disk

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5580834A (en) * 1978-12-08 1980-06-18 Thomson Csf Accessing device for track provided in optical recordable and readable medium * and optical system including said device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5580834A (en) * 1978-12-08 1980-06-18 Thomson Csf Accessing device for track provided in optical recordable and readable medium * and optical system including said device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE32285E (en) * 1982-02-26 1986-11-11 Atasi Corporation Linear actuator for a memory storage apparatus
US4743987A (en) * 1982-02-26 1988-05-10 Atasi Corporation Linear actuator for a memory storage apparatus
JPS59135638A (en) * 1982-12-24 1984-08-03 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Motor apparatus for translation
US4607913A (en) * 1983-02-14 1986-08-26 U.S. Philips Corporation Electrodynamic device for translating a lens system
JPS6239223U (en) * 1985-08-28 1987-03-09
US4811320A (en) * 1986-03-04 1989-03-07 Sanyo Electric Co., Ltd. Optical type pickup apparatus with lens holder supported by frame wires each having an end inserted into a frame hole
US4823219A (en) * 1986-05-27 1989-04-18 Mitsubishi Denki Kabushiki Kaisha Carriage recording head sandwiched by electromagnetic coil sections
JPS62293523A (en) * 1986-06-13 1987-12-21 Hamamatsu Photonics Kk Laser pickup device for optical disk
US5317552A (en) * 1989-06-13 1994-05-31 Kabushiki Kaisha Toshiba Linear actuator for driving an optical head incorporated in an optical disk

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