JPS6243256B2 - - Google Patents

Info

Publication number
JPS6243256B2
JPS6243256B2 JP5436678A JP5436678A JPS6243256B2 JP S6243256 B2 JPS6243256 B2 JP S6243256B2 JP 5436678 A JP5436678 A JP 5436678A JP 5436678 A JP5436678 A JP 5436678A JP S6243256 B2 JPS6243256 B2 JP S6243256B2
Authority
JP
Japan
Prior art keywords
tracking
lens
optical axis
objective lens
focusing
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.)
Expired
Application number
JP5436678A
Other languages
English (en)
Japanese (ja)
Other versions
JPS54146611A (en
Inventor
Takashi Hamaoka
Tooru Musha
Kenichi Ooikami
Shunpei Tanaka
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP5436678A priority Critical patent/JPS54146611A/ja
Priority to US06/035,334 priority patent/US4302830A/en
Priority to GB7915290A priority patent/GB2025110B/en
Priority to FR7911773A priority patent/FR2425782B1/fr
Priority to DE2954579A priority patent/DE2954579C2/de
Priority to DE19792918919 priority patent/DE2918919A1/de
Publication of JPS54146611A publication Critical patent/JPS54146611A/ja
Priority to FR878706802A priority patent/FR2598546B1/fr
Publication of JPS6243256B2 publication Critical patent/JPS6243256B2/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
    • G11B7/09—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
    • 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
    • G11B7/0937—Piezoelectric actuators

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP5436678A 1978-05-10 1978-05-10 Objective lens driving gear Granted JPS54146611A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP5436678A JPS54146611A (en) 1978-05-10 1978-05-10 Objective lens driving gear
US06/035,334 US4302830A (en) 1978-05-10 1979-05-01 Optical information reading-out apparatus
GB7915290A GB2025110B (en) 1978-05-10 1979-05-02 Optical information reading out apparatus
FR7911773A FR2425782B1 (fr) 1978-05-10 1979-05-09 Appareil de lecture d'informations optiques
DE2954579A DE2954579C2 (de) 1978-05-10 1979-05-10
DE19792918919 DE2918919A1 (de) 1978-05-10 1979-05-10 Vorrichtung zum auslesen optischer informationen aus einem aufzeichnungstraeger
FR878706802A FR2598546B1 (fr) 1978-05-10 1987-05-14 Dispositif d'entrainement d'un objectif d'appareil de lecture d'informations optiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5436678A JPS54146611A (en) 1978-05-10 1978-05-10 Objective lens driving gear

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP19609985A Division JPS6187230A (ja) 1985-09-06 1985-09-06 対物レンズ駆動装置

Publications (2)

Publication Number Publication Date
JPS54146611A JPS54146611A (en) 1979-11-16
JPS6243256B2 true JPS6243256B2 (de) 1987-09-12

Family

ID=12968646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5436678A Granted JPS54146611A (en) 1978-05-10 1978-05-10 Objective lens driving gear

Country Status (1)

Country Link
JP (1) JPS54146611A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57127934A (en) * 1981-01-30 1982-08-09 Hitachi Ltd Supporter for electromechanical converter
JPS58168021A (ja) * 1982-03-29 1983-10-04 Hitachi Ltd レンズ支持体
US4553227A (en) * 1982-04-23 1985-11-12 Tokyo Shibaura Denki Kabushiki Kaisha Optical pickup
JPS6020325A (ja) * 1983-07-14 1985-02-01 Nippon Kogaku Kk <Nikon> 光学系支持装置
JPS60121543A (ja) * 1984-07-28 1985-06-29 Olympus Optical Co Ltd 光学的情報読取装置

Also Published As

Publication number Publication date
JPS54146611A (en) 1979-11-16

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