ZA747221B - Apparatus for optically reading a reflecting record carrier - Google Patents

Apparatus for optically reading a reflecting record carrier

Info

Publication number
ZA747221B
ZA747221B ZA00747221A ZA747221A ZA747221B ZA 747221 B ZA747221 B ZA 747221B ZA 00747221 A ZA00747221 A ZA 00747221A ZA 747221 A ZA747221 A ZA 747221A ZA 747221 B ZA747221 B ZA 747221B
Authority
ZA
South Africa
Prior art keywords
record carrier
optically reading
reflecting record
reflecting
optically
Prior art date
Application number
ZA00747221A
Other languages
English (en)
Inventor
G 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 ZA747221B publication Critical patent/ZA747221B/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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/122—Flying-type heads, e.g. analogous to Winchester type in magnetic recording

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
ZA00747221A 1973-11-29 1974-11-11 Apparatus for optically reading a reflecting record carrier ZA747221B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7316384A NL7316384A (nl) 1973-11-29 1973-11-29 Inrichting voor het optisch uitlezen van een reflekterende registratiedrager.

Publications (1)

Publication Number Publication Date
ZA747221B true ZA747221B (en) 1976-06-30

Family

ID=19820101

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00747221A ZA747221B (en) 1973-11-29 1974-11-11 Apparatus for optically reading a reflecting record carrier

Country Status (20)

Country Link
US (1) US3950621A (xx)
JP (1) JPS5620614B2 (xx)
AR (1) AR201069A1 (xx)
AT (1) AT346095B (xx)
BE (1) BE822672A (xx)
BR (1) BR7409886A (xx)
CA (1) CA1033065A (xx)
CH (1) CH583447A5 (xx)
CS (1) CS190456B2 (xx)
DE (1) DE2453969C2 (xx)
DK (1) DK136921B (xx)
ES (1) ES432316A1 (xx)
FR (1) FR2253248B1 (xx)
GB (1) GB1490223A (xx)
IT (1) IT1024918B (xx)
NL (1) NL7316384A (xx)
NO (1) NO744237L (xx)
PL (1) PL105849B1 (xx)
SE (1) SE394336B (xx)
ZA (1) ZA747221B (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067639A (en) * 1976-05-27 1978-01-10 Xerox Corporation Holographic scanning spinner
US4530082A (en) * 1982-06-28 1985-07-16 Eastman Kodak Company Optical disc write/read employing passive focus maintenance
JPS6229053Y2 (xx) * 1984-10-16 1987-07-25
GB2216710B (en) * 1988-03-14 1992-09-02 Ici Plc Optical or magneto-optical data system
US5012463A (en) * 1988-03-14 1991-04-30 Bernoulli Optical Systems Company Optical read/write storage system for flexible media having bernoulli stabilization at the optical head

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155977A (en) * 1959-08-31 1964-11-03 Ibm Resilient recording disk
US3855426A (en) * 1971-03-11 1974-12-17 Philips Corp Video disc recording and optical playback system therefor
NL172202C (nl) * 1971-03-11 1983-07-18 Philips Nv Inrichting voor het uitlezen van een plaatvormige informatiedrager bevattende in optische vorm gecodeerde beeld- en/of geluidssignalen.
NL160138C (nl) * 1972-05-11 1979-09-17 Philips Nv Inrichting voor het uitlezen van een vlakke registratie- drager.

Also Published As

Publication number Publication date
SE394336B (sv) 1977-06-20
CS190456B2 (en) 1979-05-31
FR2253248B1 (xx) 1980-03-21
NL7316384A (nl) 1975-06-02
GB1490223A (en) 1977-10-26
ATA946074A (de) 1978-02-15
DK613474A (xx) 1975-07-28
AR201069A1 (es) 1975-02-06
NO744237L (xx) 1975-06-23
JPS5087606A (xx) 1975-07-14
US3950621A (en) 1976-04-13
FR2253248A1 (xx) 1975-06-27
CH583447A5 (xx) 1976-12-31
DK136921B (da) 1977-12-12
SE7414806L (xx) 1975-05-30
CA1033065A (en) 1978-06-13
DE2453969C2 (de) 1986-04-10
IT1024918B (it) 1978-07-20
AT346095B (de) 1978-10-25
BR7409886A (pt) 1976-05-25
BE822672A (nl) 1975-05-27
ES432316A1 (es) 1976-11-01
JPS5620614B2 (xx) 1981-05-14
DE2453969A1 (de) 1975-06-19
DK136921C (xx) 1978-05-22
PL105849B1 (pl) 1979-11-30
AU7580674A (en) 1976-05-27

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