FR2223778A1 - - Google Patents

Info

Publication number
FR2223778A1
FR2223778A1 FR7410383A FR7410383A FR2223778A1 FR 2223778 A1 FR2223778 A1 FR 2223778A1 FR 7410383 A FR7410383 A FR 7410383A FR 7410383 A FR7410383 A FR 7410383A FR 2223778 A1 FR2223778 A1 FR 2223778A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7410383A
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.)
TED Bildplatten AG AEG Telefunken Teldec
Original Assignee
TED Bildplatten AG AEG Telefunken Teldec
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
Priority claimed from DE2315735A external-priority patent/DE2315735A1/de
Priority claimed from DE19742405071 external-priority patent/DE2405071A1/de
Priority claimed from DE19742405039 external-priority patent/DE2405039A1/de
Application filed by TED Bildplatten AG AEG Telefunken Teldec filed Critical TED Bildplatten AG AEG Telefunken Teldec
Publication of FR2223778A1 publication Critical patent/FR2223778A1/fr
Withdrawn legal-status Critical Current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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Manufacturing Optical Record Carriers (AREA)
FR7410383A 1973-03-27 1974-03-26 Withdrawn FR2223778A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2315735A DE2315735A1 (de) 1973-03-27 1973-03-27 Verfahren und vorrichtungen zur herstellung einer spurfuehrungbei der aufzeichnung von informationen in einer spirale auf einem plattenfoermigen signaltraeger
DE19742405071 DE2405071A1 (de) 1974-02-02 1974-02-02 Verfahren und vorrichtung zur herstellung einer spurfuehrung bei der aufzeichnung von informationen in einer spirale auf einem plattenfoermigen signaltraeger
DE19742405039 DE2405039A1 (de) 1974-02-02 1974-02-02 Verfahren und vorrichtung zur herstellung einer spurfuehrung bei der aufzeichnung von informationen in einer spirale auf einem plattenfoermigen signaltraeger

Publications (1)

Publication Number Publication Date
FR2223778A1 true FR2223778A1 (fr) 1974-10-25

Family

ID=27185161

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7410383A Withdrawn FR2223778A1 (fr) 1973-03-27 1974-03-26

Country Status (5)

Country Link
JP (1) JPS5027502A (fr)
DD (1) DD113649A5 (fr)
FR (1) FR2223778A1 (fr)
GB (1) GB1461605A (fr)
IT (1) IT1004391B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321164A1 (fr) * 1975-08-13 1977-03-11 Thomson Csf Procede mecano-optique de diffusion de l'information, disque et dispositifs d'enregistrement et de lecture pour la mise en oeuvre de ce procede
FR2521760A1 (fr) * 1982-02-12 1983-08-19 Thomson Csf Procede thermo-optique d'inscription d'information sur support et dispositif mettant en oeuvre ce procede

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5569500A (en) * 1978-11-17 1980-05-26 Pilot Ink Co Ltd Method of making writing implement clip with ornament
JPS5646721A (en) * 1979-09-21 1981-04-28 Seidensha Denshi Kogyo Kk Caulking device for plastic projection
JPS5674381U (fr) * 1979-11-13 1981-06-18
JPS609743Y2 (ja) * 1979-11-13 1985-04-05 セイコーエプソン株式会社 防水時計ケ−スのガラス部の係止構造
JPS5757619A (en) * 1980-09-25 1982-04-06 Matsushita Electric Ind Co Ltd Holding device of plastic forming parts of hot air blowing type
JPS57146117A (en) * 1981-03-05 1982-09-09 Aisin Seiki Co Ltd Attaching method for float stopper in liquid level detecting device
JPS60132616U (ja) * 1984-02-13 1985-09-04 パイオニア株式会社 記録装置
JPH072955Y2 (ja) * 1988-08-25 1995-01-30 文化シヤッター株式会社 明り取り窓の構造
JPH042620U (fr) * 1990-04-23 1992-01-10
US20070062917A1 (en) * 2005-09-21 2007-03-22 Quantronix Corporation Laser cutting and sawing method and apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321164A1 (fr) * 1975-08-13 1977-03-11 Thomson Csf Procede mecano-optique de diffusion de l'information, disque et dispositifs d'enregistrement et de lecture pour la mise en oeuvre de ce procede
FR2521760A1 (fr) * 1982-02-12 1983-08-19 Thomson Csf Procede thermo-optique d'inscription d'information sur support et dispositif mettant en oeuvre ce procede

Also Published As

Publication number Publication date
IT1004391B (it) 1976-07-10
GB1461605A (en) 1977-01-13
DD113649A5 (fr) 1975-06-12
JPS5027502A (fr) 1975-03-20

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Legal Events

Date Code Title Description
ST Notification of lapse