CS219309B2 - Apparatus for scanning the recording carrier - Google Patents

Apparatus for scanning the recording carrier Download PDF

Info

Publication number
CS219309B2
CS219309B2 CS736097A CS609773A CS219309B2 CS 219309 B2 CS219309 B2 CS 219309B2 CS 736097 A CS736097 A CS 736097A CS 609773 A CS609773 A CS 609773A CS 219309 B2 CS219309 B2 CS 219309B2
Authority
CS
Czechoslovakia
Prior art keywords
radiation
recording medium
lens
information
track
Prior art date
Application number
CS736097A
Other languages
Czech (cs)
English (en)
Inventor
Gijsbertus Bouwhuis
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 CS219309B2 publication Critical patent/CS219309B2/cs

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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
CS736097A 1972-09-05 1973-08-31 Apparatus for scanning the recording carrier CS219309B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7212044A NL7212044A (xx) 1972-09-05 1972-09-05

Publications (1)

Publication Number Publication Date
CS219309B2 true CS219309B2 (en) 1983-03-25

Family

ID=19816870

Family Applications (1)

Application Number Title Priority Date Filing Date
CS736097A CS219309B2 (en) 1972-09-05 1973-08-31 Apparatus for scanning the recording carrier

Country Status (3)

Country Link
US (1) US3956582A (xx)
CS (1) CS219309B2 (xx)
NL (1) NL7212044A (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5175725A (en) * 1972-08-25 1992-12-29 Thomson-Csf Optical disk arrangement with closed contours whose entire extent represents information
US5182743A (en) * 1972-08-25 1993-01-26 Thomson-Csf Optical disk arrangement with diffractive tracks allowing positional control
FR2197495A5 (xx) * 1972-08-25 1974-03-22 Thomson Csf
NL174591C (nl) * 1973-02-09 1984-07-02 Philips Nv Schijfvormig registratiedragerlichaam.
FR2365854A1 (fr) * 1976-09-24 1978-04-21 Thomson Brandt Procede de fabrication d'un support d'information enregistrable et lisible optiquement et support obtenu par un tel procede
JPS56116004A (en) * 1980-02-20 1981-09-11 Olympus Optical Co Ltd Lens for video disk
US4349901A (en) * 1980-06-20 1982-09-14 Eastman Kodak Company Apparatus and method for reading optical discs
DE3234949C1 (de) * 1982-09-21 1983-12-15 Precitronic Gesellschaft für Feinmechanik und Electronic mbH, 2000 Hamburg Einrichtung zur Schussgefechtssimulation zwischen Gefechtsteilnehmern
US5247510A (en) * 1990-06-29 1993-09-21 Digital Equipment Corporation Increasing storage density of optical data media by detecting a selected portion of a light spot image corresponding to a single domain
US5995481A (en) * 1995-09-12 1999-11-30 Wea Manufacturing Inc. Light-readable recording disc utilizing half-wavelength pits or bumps and system for reading such discs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534166A (en) * 1967-08-04 1970-10-13 Zenith Radio Corp Television picture recording and replay system
DE1613990A1 (de) * 1968-03-01 1970-08-20 Bosch Gmbh Robert Einrichtung zur Spurfuehrung bei einem Lichtfleck-Abtastgeraet
US3688025A (en) * 1970-10-27 1972-08-29 Rca Corp Recorder and playback apparatus for pulse width modulated record

Also Published As

Publication number Publication date
NL7212044A (xx) 1974-03-07
US3956582A (en) 1976-05-11

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