JPS5027502A - - Google Patents

Info

Publication number
JPS5027502A
JPS5027502A JP3435474A JP3435474A JPS5027502A JP S5027502 A JPS5027502 A JP S5027502A JP 3435474 A JP3435474 A JP 3435474A JP 3435474 A JP3435474 A JP 3435474A JP S5027502 A JPS5027502 A JP S5027502A
Authority
JP
Japan
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
JP3435474A
Other languages
Japanese (ja)
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/en
Priority claimed from DE19742405071 external-priority patent/DE2405071A1/en
Priority claimed from DE19742405039 external-priority patent/DE2405039A1/en
Application filed filed Critical
Publication of JPS5027502A publication Critical patent/JPS5027502A/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
    • G11B7/12—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)
JP3435474A 1973-03-27 1974-03-27 Pending JPS5027502A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2315735A DE2315735A1 (en) 1973-03-27 1973-03-27 METHOD AND DEVICES FOR PRODUCING A TRACK GUIDANCE FOR THE RECORDING OF INFORMATION IN A SPIRAL ON A PLATE-SHAPED SIGNAL CARRIER
DE19742405071 DE2405071A1 (en) 1974-02-02 1974-02-02 Recording information on photosensitive discs - using laser beam to produce a track and modulated laser beam to record
DE19742405039 DE2405039A1 (en) 1974-02-02 1974-02-02 Recording information on photosensitive discs - using laser beam to produce a track and modulated laser beam to record

Publications (1)

Publication Number Publication Date
JPS5027502A true JPS5027502A (en) 1975-03-20

Family

ID=27185161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3435474A Pending JPS5027502A (en) 1973-03-27 1974-03-27

Country Status (5)

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

Cited By (9)

* 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 (en) * 1979-11-13 1981-06-18
JPS5674384U (en) * 1979-11-13 1981-06-18
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 (en) * 1984-02-13 1985-09-04 パイオニア株式会社 recording device
JPH0232590U (en) * 1988-08-25 1990-02-28
JPH042620U (en) * 1990-04-23 1992-01-10

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321164A1 (en) * 1975-08-13 1977-03-11 Thomson Csf Video signal recording system - reads out signals from constant pitch spiral disc track using beam mechanically controlled by guide track
FR2521760A1 (en) * 1982-02-12 1983-08-19 Thomson Csf Thermo-optical recording process for video disc - uses two lasers of different wavelengths, only one being intensity modulated
US20070062917A1 (en) * 2005-09-21 2007-03-22 Quantronix Corporation Laser cutting and sawing method and apparatus

Cited By (12)

* 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
JPS6230920B2 (en) * 1978-11-17 1987-07-06 Pilot Ink Co Ltd
JPS5646721A (en) * 1979-09-21 1981-04-28 Seidensha Denshi Kogyo Kk Caulking device for plastic projection
JPS5674381U (en) * 1979-11-13 1981-06-18
JPS5674384U (en) * 1979-11-13 1981-06-18
JPS609743Y2 (en) * 1979-11-13 1985-04-05 セイコーエプソン株式会社 Locking structure of the glass part of a waterproof watch case
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 (en) * 1984-02-13 1985-09-04 パイオニア株式会社 recording device
JPH042414Y2 (en) * 1984-02-13 1992-01-28
JPH0232590U (en) * 1988-08-25 1990-02-28
JPH042620U (en) * 1990-04-23 1992-01-10

Also Published As

Publication number Publication date
GB1461605A (en) 1977-01-13
FR2223778A1 (en) 1974-10-25
IT1004391B (en) 1976-07-10
DD113649A5 (en) 1975-06-12

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