FR2273425A1 - Facsimile transmission reader using detector array - has light guiding system for angled beam illuminating separate points - Google Patents

Facsimile transmission reader using detector array - has light guiding system for angled beam illuminating separate points

Info

Publication number
FR2273425A1
FR2273425A1 FR7418637A FR7418637A FR2273425A1 FR 2273425 A1 FR2273425 A1 FR 2273425A1 FR 7418637 A FR7418637 A FR 7418637A FR 7418637 A FR7418637 A FR 7418637A FR 2273425 A1 FR2273425 A1 FR 2273425A1
Authority
FR
France
Prior art keywords
document
light guiding
detector array
facsimile transmission
guiding system
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.)
Withdrawn
Application number
FR7418637A
Other languages
French (fr)
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.)
Laboratoires dElectronique Philips SAS
Original Assignee
Laboratoires dElectronique et de Physique Appliquee
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 Laboratoires dElectronique et de Physique Appliquee filed Critical Laboratoires dElectronique et de Physique Appliquee
Priority to FR7418637A priority Critical patent/FR2273425A1/en
Publication of FR2273425A1 publication Critical patent/FR2273425A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/03—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array
    • H04N1/031—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array the photodetectors having a one-to-one and optically positive correspondence with the scanned picture elements, e.g. linear contact sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

The document reader consists of anumber of photo-detectors, at least one light source and means of guiding towards the document the luminous radiation for the source or sources of light. The guiding means are of form and dimension such that they enable point by point illumination to be directed onto the document. They also enable reading to be effected by separate detection of the radiation diffused by each illuminated point. The reading system is arranged so as to isolate radiation diffused by the illuminated spot from radiation diffused by neighbouring illuminated points. The axis of the beam from the light source to the illuminated point makes an angle alpha with the plane of the document.
FR7418637A 1974-05-29 1974-05-29 Facsimile transmission reader using detector array - has light guiding system for angled beam illuminating separate points Withdrawn FR2273425A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7418637A FR2273425A1 (en) 1974-05-29 1974-05-29 Facsimile transmission reader using detector array - has light guiding system for angled beam illuminating separate points

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7418637A FR2273425A1 (en) 1974-05-29 1974-05-29 Facsimile transmission reader using detector array - has light guiding system for angled beam illuminating separate points

Publications (1)

Publication Number Publication Date
FR2273425A1 true FR2273425A1 (en) 1975-12-26

Family

ID=9139409

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7418637A Withdrawn FR2273425A1 (en) 1974-05-29 1974-05-29 Facsimile transmission reader using detector array - has light guiding system for angled beam illuminating separate points

Country Status (1)

Country Link
FR (1) FR2273425A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196006A2 (en) * 1985-03-19 1986-10-01 Kabushiki Kaisha Toshiba Image sensor apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196006A2 (en) * 1985-03-19 1986-10-01 Kabushiki Kaisha Toshiba Image sensor apparatus
EP0196006A3 (en) * 1985-03-19 1987-01-21 Kabushiki Kaisha Toshiba Image sensor apparatus

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Legal Events

Date Code Title Description
ST Notification of lapse