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JPS5730128A - Optical head for optical disk device - Google Patents

Optical head for optical disk device

Info

Publication number
JPS5730128A
JPS5730128A JP10374980A JP10374980A JPS5730128A JP S5730128 A JPS5730128 A JP S5730128A JP 10374980 A JP10374980 A JP 10374980A JP 10374980 A JP10374980 A JP 10374980A JP S5730128 A JPS5730128 A JP S5730128A
Authority
JP
Japan
Prior art keywords
optical
curved part
parasitic vibrations
optical lens
disk device
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
JP10374980A
Other languages
Japanese (ja)
Other versions
JPS6053372B2 (en
Inventor
Noriya Kaneda
Hatsuo Takahashi
Hiroshi Kitani
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10374980A priority Critical patent/JPS6053372B2/en
Publication of JPS5730128A publication Critical patent/JPS5730128A/en
Publication of JPS6053372B2 publication Critical patent/JPS6053372B2/en
Expired 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

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To suppress unnecessary parasitic vibrations by curving the center part of a metallic thin piece which supports an optical lens elastically and has spiral winds around an optical axis. CONSTITUTION:An optical lens is fitted to a ring 32 and between rings 32 and 31, three spring pieces 33 are provided spirally. Each spring piece 33 swells up at its center part to form a curved part 41 continuing smoothly from flat parts 42 at both ends. This curved part absorbs the energy of parasitic vibrations efficiently and new parasitic vibrations of high order are never entailed because of the smooth succession of the curved part 41 to both the ends.
JP10374980A 1980-07-30 1980-07-30 Optical heads for optical disk devices Expired JPS6053372B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10374980A JPS6053372B2 (en) 1980-07-30 1980-07-30 Optical heads for optical disk devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10374980A JPS6053372B2 (en) 1980-07-30 1980-07-30 Optical heads for optical disk devices

Publications (2)

Publication Number Publication Date
JPS5730128A true JPS5730128A (en) 1982-02-18
JPS6053372B2 JPS6053372B2 (en) 1985-11-25

Family

ID=14362220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10374980A Expired JPS6053372B2 (en) 1980-07-30 1980-07-30 Optical heads for optical disk devices

Country Status (1)

Country Link
JP (1) JPS6053372B2 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155638U (en) * 1982-04-14 1983-10-18 株式会社日立製作所 Objective lens drive device
JPS58199445A (en) * 1982-05-17 1983-11-19 Olympus Optical Co Ltd Reader for information track
JPS58205932A (en) * 1982-05-24 1983-12-01 Olympus Optical Co Ltd Reader of information track
JPS5914134U (en) * 1982-07-19 1984-01-28 パイオニア株式会社 Support structure of movable body
JPS5933128U (en) * 1982-08-26 1984-03-01 パイオニア株式会社 Pickup device for optical information reading device
JPS59153626U (en) * 1983-03-31 1984-10-15 株式会社東芝 Optical information reading device
JPH02230522A (en) * 1989-04-10 1990-09-12 Matsushita Electric Ind Co Ltd Objective lens holding device for optical disk device
CN100362385C (en) * 2004-12-15 2008-01-16 思考电机（上海）有限公司 lens driver
JP2008116622A (en) * 2006-11-02 2008-05-22 Micro Uintekku Kk Lens drive device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155638U (en) * 1982-04-14 1983-10-18 株式会社日立製作所 Objective lens drive device
JPS58199445A (en) * 1982-05-17 1983-11-19 Olympus Optical Co Ltd Reader for information track
JPH0450659B2 (en) * 1982-05-17 1992-08-14 Olympus Optical Co
JPS58205932A (en) * 1982-05-24 1983-12-01 Olympus Optical Co Ltd Reader of information track
JPS5914134U (en) * 1982-07-19 1984-01-28 パイオニア株式会社 Support structure of movable body
JPS5933128U (en) * 1982-08-26 1984-03-01 パイオニア株式会社 Pickup device for optical information reading device
JPH0528569Y2 (en) * 1982-08-26 1993-07-22
JPS59153626U (en) * 1983-03-31 1984-10-15 株式会社東芝 Optical information reading device
JPH0222813Y2 (en) * 1983-03-31 1990-06-20
JPH02230522A (en) * 1989-04-10 1990-09-12 Matsushita Electric Ind Co Ltd Objective lens holding device for optical disk device
CN100362385C (en) * 2004-12-15 2008-01-16 思考电机（上海）有限公司 lens driver
JP2008116622A (en) * 2006-11-02 2008-05-22 Micro Uintekku Kk Lens drive device

Also Published As

Publication number Publication date
JPS6053372B2 (en) 1985-11-25

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