CA1033065A - Apparatus for optically reading a reflecting record carrier - Google Patents

Apparatus for optically reading a reflecting record carrier

Info

Publication number
CA1033065A
CA1033065A CA214,631A CA214631A CA1033065A CA 1033065 A CA1033065 A CA 1033065A CA 214631 A CA214631 A CA 214631A CA 1033065 A CA1033065 A CA 1033065A
Authority
CA
Canada
Prior art keywords
record carrier
optically reading
reflecting record
reflecting
optically
Prior art date
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.)
Expired
Application number
CA214,631A
Other languages
English (en)
French (fr)
Other versions
CA214631S (en
Inventor
Gijsbertus Bouwhuis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA1033065A publication Critical patent/CA1033065A/en
Expired 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
    • G11B7/122—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)
CA214,631A 1973-11-29 1974-11-26 Apparatus for optically reading a reflecting record carrier Expired CA1033065A (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
CA1033065A true CA1033065A (en) 1978-06-13

Family

ID=19820101

Family Applications (1)

Application Number Title Priority Date Filing Date
CA214,631A Expired CA1033065A (en) 1973-11-29 1974-11-26 Apparatus for optically reading a reflecting record carrier

Country Status (20)

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

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 (it) * 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
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.
US3855426A (en) * 1971-03-11 1974-12-17 Philips Corp Video disc recording and optical playback system therefor
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
DK613474A (it) 1975-07-28
ZA747221B (en) 1976-06-30
DE2453969A1 (de) 1975-06-19
SE7414806L (it) 1975-05-30
AU7580674A (en) 1976-05-27
BR7409886A (pt) 1976-05-25
ATA946074A (de) 1978-02-15
SE394336B (sv) 1977-06-20
NL7316384A (nl) 1975-06-02
JPS5620614B2 (it) 1981-05-14
CS190456B2 (en) 1979-05-31
CH583447A5 (it) 1976-12-31
ES432316A1 (es) 1976-11-01
JPS5087606A (it) 1975-07-14
AT346095B (de) 1978-10-25
AR201069A1 (es) 1975-02-06
US3950621A (en) 1976-04-13
PL105849B1 (pl) 1979-11-30
FR2253248B1 (it) 1980-03-21
BE822672A (nl) 1975-05-27
DK136921C (it) 1978-05-22
GB1490223A (en) 1977-10-26
DK136921B (da) 1977-12-12
NO744237L (it) 1975-06-23
DE2453969C2 (de) 1986-04-10
FR2253248A1 (it) 1975-06-27
IT1024918B (it) 1978-07-20

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