IT1004391B - Procedimento e dispositivo per la fabbricazione di una guida nel sol co della registrazione di informa zioni di una spirale su un supporto di segnale a forma discoidale - Google Patents

Procedimento e dispositivo per la fabbricazione di una guida nel sol co della registrazione di informa zioni di una spirale su un supporto di segnale a forma discoidale

Info

Publication number
IT1004391B
IT1004391B IT4939674A IT4939674A IT1004391B IT 1004391 B IT1004391 B IT 1004391B IT 4939674 A IT4939674 A IT 4939674A IT 4939674 A IT4939674 A IT 4939674A IT 1004391 B IT1004391 B IT 1004391B
Authority
IT
Italy
Prior art keywords
discoid
sol
spiral
recording
procedure
Prior art date
Application number
IT4939674A
Other languages
English (en)
Italian (it)
Original Assignee
Ted Bildplatten
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 filed Critical Ted Bildplatten
Priority to DE19742449136 priority Critical patent/DE2449136A1/de
Application granted granted Critical
Publication of IT1004391B publication Critical patent/IT1004391B/it

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)
IT4939674A 1973-03-27 1974-03-21 Procedimento e dispositivo per la fabbricazione di una guida nel sol co della registrazione di informa zioni di una spirale su un supporto di segnale a forma discoidale IT1004391B (it)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742449136 DE2449136A1 (de) 1973-03-27 1974-10-16 Verfahren zur herstellung eines signaltraegers mit spurfuehrung und nach dem verfahren hergestellter signaltraeger

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
IT1004391B true IT1004391B (it) 1976-07-10

Family

ID=27185161

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4939674A IT1004391B (it) 1973-03-27 1974-03-21 Procedimento e dispositivo per la fabbricazione di una guida nel sol co della registrazione di informa zioni di una spirale su un supporto di segnale a forma discoidale

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)

Families Citing this family (12)

* 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
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
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
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

Also Published As

Publication number Publication date
GB1461605A (en) 1977-01-13
DD113649A5 (fr) 1975-06-12
JPS5027502A (fr) 1975-03-20
FR2223778A1 (fr) 1974-10-25

Similar Documents

Publication Publication Date Title
IT1007382B (it) Dispositivo di lettura di una pista diffrangente inscritta su un supporto in forma di disco o di nastro
IT985879B (it) Apparecchio per leggere un sopporto di registrazioni piatto e rifletten te
AT321377B (de) Informationsspeichereinrichtung
IT979246B (it) Dispositivo avvolgitore per nastri e lamine
SE414840B (sv) Anordning for uppteckning och avlesning av information
IT1015453B (it) Dispositivo di lettura ottica di una pista diffrangente appartenen te a un supporto d informazione in forma di disco o di nastro
IT993600B (it) Dispositivo per la lettura di informazioni registrate su un supporto magnetico
ZA734788B (en) Record carrier on which information is recorded in an optical structure
IT1004391B (it) Procedimento e dispositivo per la fabbricazione di una guida nel sol co della registrazione di informa zioni di una spirale su un supporto di segnale a forma discoidale
AT354757B (de) Kassetten-aufnahme- und/oder-wiedergabegeraet
IT990422B (it) Supporto di informazione registrata su disco a struttura ottica
SE389215B (sv) Informationsavspelningsanordning
NL180054C (nl) Bandopneem- en/of -weergeefapparaat.
JPS53121421A (en) Information reproducer
CH552866A (de) Ton-aufnahme- und wiedergabegeraet.
IT953831B (it) Procedimento per la fabbricazione di una testa di scrittura per un dispositivo per la registrazione di informazioni su un supporto di registrazione
SE392072B (sv) Dataregistreringsapparat
NL7311429A (nl) Opneeminrichting uitgevoerd met informatie- opneemplaatsen in een halfgeleiderlichaam.
IT1044234B (it) Dispositivo per la lettura di informazioni memorizzate colmetodo olografico
IT996447B (it) Supporto di registrazione magnetico
NL186056C (nl) Magnetisch bandopneem- en -weergeefapparaat.
SE387890B (sv) Dataregistreringsapparat
IT990421B (it) Dispositivo per la lettura di informazione da un supporto di registrazione in forma di disco
NL148173B (nl) Cassette-opneem- en afspeelinrichting.
AT318720B (de) Aufzeichnungs- und gegebenenfalls Wiedergabegerät