JPS5187081A - Denkikikaitekitoransudeyuusa - Google Patents

Denkikikaitekitoransudeyuusa

Info

Publication number
JPS5187081A
JPS5187081A JP14831675A JP14831675A JPS5187081A JP S5187081 A JPS5187081 A JP S5187081A JP 14831675 A JP14831675 A JP 14831675A JP 14831675 A JP14831675 A JP 14831675A JP S5187081 A JPS5187081 A JP S5187081A
Authority
JP
Japan
Prior art keywords
denkikikaitekitoransudeyuusa
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
JP14831675A
Other languages
English (en)
Japanese (ja)
Inventor
Marisan Rooran
Ruure Jeraaru
Monrui Kuroodo
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.)
Thomson-Brandt SA
Original Assignee
Thomson-Brandt SA
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 Thomson-Brandt SA filed Critical Thomson-Brandt SA
Publication of JPS5187081A publication Critical patent/JPS5187081A/ja
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
    • G11B7/09—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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Indicating Measured Values (AREA)
JP14831675A 1974-12-13 1975-12-12 Denkikikaitekitoransudeyuusa Pending JPS5187081A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7441133A FR2294605A1 (fr) 1974-12-13 1974-12-13 Transducteur electrodynamique

Publications (1)

Publication Number Publication Date
JPS5187081A true JPS5187081A (ja) 1976-07-30

Family

ID=9146141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14831675A Pending JPS5187081A (ja) 1974-12-13 1975-12-12 Denkikikaitekitoransudeyuusa

Country Status (5)

Country Link
JP (1) JPS5187081A (nl)
DE (1) DE2556112A1 (nl)
FR (1) FR2294605A1 (nl)
IT (1) IT1050331B (nl)
NL (1) NL7514438A (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58179635U (ja) * 1982-05-25 1983-12-01 株式会社三協精機製作所 ピックアップの対物レンズ駆動装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474740A1 (fr) * 1980-01-24 1981-07-31 Thomson Csf Equipage mobile d'un lecteur enregistreur de videodisque, et lecteur enregistreur de videodisque comprenant un tel equipage
NL8001617A (nl) * 1980-03-19 1981-10-16 Philips Nv Inrichting voor het elektrodynamisch bestuurbaar zwenken van een optisch element.
FR2497378B1 (fr) * 1980-12-29 1985-06-28 Thomson Csf Dispositif compensateur de desequilibre d'un miroir de renvoi appartenant a un systeme optique d'eclairement d'un support d'information
JPS57178233A (en) * 1981-04-27 1982-11-02 Sony Corp Supporting structure of optical system
JPS59104735A (ja) * 1982-12-08 1984-06-16 Sony Corp 対物レンズ駆動装置
DE3315848A1 (de) * 1983-04-30 1984-10-31 Philips Patentverwaltung Gmbh, 2000 Hamburg Aktuatorvorrichtung an schreib- und lesegeraeten zur staendigen korrektur der raeumlichen stellung eines schreib- oder lesemittels, insbesondere eines strahlenbuendels

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58179635U (ja) * 1982-05-25 1983-12-01 株式会社三協精機製作所 ピックアップの対物レンズ駆動装置
JPH0222812Y2 (nl) * 1982-05-25 1990-06-20

Also Published As

Publication number Publication date
DE2556112A1 (de) 1976-06-24
NL7514438A (nl) 1976-06-15
IT1050331B (it) 1981-03-10
FR2294605A1 (fr) 1976-07-09

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