SE402368B - Uppteckningsberare samt apparat for framstellning av densamma - Google Patents

Uppteckningsberare samt apparat for framstellning av densamma

Info

Publication number
SE402368B
SE402368B SE7408535A SE7408535A SE402368B SE 402368 B SE402368 B SE 402368B SE 7408535 A SE7408535 A SE 7408535A SE 7408535 A SE7408535 A SE 7408535A SE 402368 B SE402368 B SE 402368B
Authority
SE
Sweden
Prior art keywords
recorders
manufacture
same
Prior art date
Application number
SE7408535A
Other languages
English (en)
Swedish (sv)
Other versions
SE7408535L (xx
Inventor
G Bouwhuis
J J M Braat
B A J Jacobs
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of SE7408535L publication Critical patent/SE7408535L/xx
Publication of SE402368B publication Critical patent/SE402368B/xx

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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
SE7408535A 1973-07-02 1974-06-28 Uppteckningsberare samt apparat for framstellning av densamma SE402368B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7309174,A NL172111C (nl) 1973-07-02 1973-07-02 Registratiedrager waarop informatie is vastgelegd in een optische struktuur en inrichting voor het inschrijven van een dergelijke registratiedrager.

Publications (2)

Publication Number Publication Date
SE7408535L SE7408535L (xx) 1975-01-03
SE402368B true SE402368B (sv) 1978-06-26

Family

ID=19819188

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7408535A SE402368B (sv) 1973-07-02 1974-06-28 Uppteckningsberare samt apparat for framstellning av densamma

Country Status (16)

Country Link
JP (1) JPS5623221B2 (xx)
AT (1) AT346096B (xx)
BE (1) BE817188A (xx)
BR (1) BR7405448D0 (xx)
CA (1) CA1039402A (xx)
CH (1) CH592349A5 (xx)
DE (1) DE2429850C2 (xx)
DK (1) DK137735B (xx)
ES (1) ES427804A1 (xx)
FR (1) FR2236240B1 (xx)
GB (1) GB1479294A (xx)
IT (1) IT1014438B (xx)
NL (1) NL172111C (xx)
NO (1) NO144551C (xx)
SE (1) SE402368B (xx)
ZA (1) ZA744185B (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7506495A (nl) * 1975-06-02 1976-12-06 Philips Nv Inrichting voor het uitlezen van een registratie- drager.
JPS5242034U (xx) * 1975-09-18 1977-03-25
FR2330108A1 (fr) * 1975-10-31 1977-05-27 Hitachi Ltd Appareil de restitution d'informations
US4097895A (en) * 1976-03-19 1978-06-27 Rca Corporation Multilayer optical record
JPS5363002A (en) * 1976-11-18 1978-06-06 Sony Corp Signal recording system and disk type medium for recording signal
JPS5369006A (en) * 1976-11-30 1978-06-20 Sony Corp Reproducer of disc form signal recording media
JPS54141604A (en) * 1978-04-27 1979-11-05 Nippon Columbia Optical disk and method of fabricating original disk of optical disk
CH636467A5 (en) * 1978-10-17 1983-05-31 Mca Disco Vision Method and device for recording a modulated electrical signal
NL7902363A (nl) * 1979-03-27 1980-09-30 Philips Nv Registratiedrager met een optisch uitleesbare informa- tiestruktuur.
JPH0335455Y2 (xx) * 1986-01-10 1991-07-26

Also Published As

Publication number Publication date
NL172111B (nl) 1983-02-01
DK351274A (xx) 1975-02-24
DE2429850A1 (de) 1975-01-30
JPS5034508A (xx) 1975-04-02
FR2236240B1 (xx) 1979-08-24
ZA744185B (en) 1976-02-25
GB1479294A (en) 1977-07-13
DK137735B (da) 1978-04-24
ATA538774A (de) 1978-02-15
BE817188A (fr) 1975-01-02
BR7405448D0 (pt) 1975-04-15
ES427804A1 (es) 1976-08-01
DK137735C (xx) 1978-10-02
NO144551C (no) 1981-09-16
FR2236240A1 (xx) 1975-01-31
IT1014438B (it) 1977-04-20
DE2429850C2 (de) 1982-11-18
NO742366L (xx) 1975-01-27
CH592349A5 (xx) 1977-10-31
AU7074274A (en) 1976-01-08
SE7408535L (xx) 1975-01-03
CA1039402A (en) 1978-09-26
AT346096B (de) 1978-10-25
NL7309174A (nl) 1975-01-06
NO144551B (no) 1981-06-09
NL172111C (nl) 1983-07-01
JPS5623221B2 (xx) 1981-05-29

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