JPS57133530A - Optical scanner for data medium - Google Patents

Optical scanner for data medium

Info

Publication number
JPS57133530A
JPS57133530A JP56215920A JP21592081A JPS57133530A JP S57133530 A JPS57133530 A JP S57133530A JP 56215920 A JP56215920 A JP 56215920A JP 21592081 A JP21592081 A JP 21592081A JP S57133530 A JPS57133530 A JP S57133530A
Authority
JP
Japan
Prior art keywords
optical scanner
data medium
medium
data
scanner
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.)
Pending
Application number
JP56215920A
Other languages
English (en)
Inventor
Buoro Patoritsuku
Buriko Kuroodo
Shiyaboshiyu Mishieru
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of JPS57133530A publication Critical patent/JPS57133530A/ja
Pending 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • 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
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
JP56215920A 1980-12-29 1981-12-26 Optical scanner for data medium Pending JPS57133530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8027689A FR2497377B1 (fr) 1980-12-29 1980-12-29 Dispositif d'exploration optique d'un support d'information

Publications (1)

Publication Number Publication Date
JPS57133530A true JPS57133530A (en) 1982-08-18

Family

ID=9249570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56215920A Pending JPS57133530A (en) 1980-12-29 1981-12-26 Optical scanner for data medium

Country Status (4)

Country Link
EP (1) EP0055645A3 (ja)
JP (1) JPS57133530A (ja)
CA (1) CA1183604A (ja)
FR (1) FR2497377B1 (ja)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7402768A (nl) * 1974-02-28 1975-09-01 Philips Nv Inrichting voor het schrijven en/of weergeven van informatie in respektievelijk van een draaiende schijfvormige registratiedrager.
NL164689C (nl) * 1975-03-10 1981-01-15 Philips Nv Optische focusseerinrichting voor het focusseren van een stralingsbundel.
JPS5953612B2 (ja) * 1975-11-19 1984-12-26 カブシキガイシヤ フジテレビジヨン コウデンシキサイセイホウホウ
NL176315C (nl) * 1976-05-12 1985-03-18 Philips Nv Optische aftastinrichting.
NL7703232A (nl) * 1977-03-25 1978-09-27 Philips Nv Optische aftastinrichting.
FR2443734A1 (fr) * 1978-12-08 1980-07-04 Thomson Csf Dispositif d'acces a une piste portee par un support enregistrable ou lisible optiquement et systeme optique comportant un tel dispositif
FR2474221A1 (fr) * 1980-01-23 1981-07-24 Thomson Csf Dispositif optique d'enregistrement-lecture de supports d'information et systeme de memoire optique comportant un tel systeme

Also Published As

Publication number Publication date
FR2497377B1 (fr) 1985-06-28
EP0055645A2 (fr) 1982-07-07
CA1183604A (en) 1985-03-05
EP0055645A3 (en) 1982-08-11
FR2497377A1 (fr) 1982-07-02

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