FR2698231B1 - Tête d'analyse de télécopieur à éclairage angulairement non uniforme. - Google Patents

Tête d'analyse de télécopieur à éclairage angulairement non uniforme.

Info

Publication number
FR2698231B1
FR2698231B1 FR9213841A FR9213841A FR2698231B1 FR 2698231 B1 FR2698231 B1 FR 2698231B1 FR 9213841 A FR9213841 A FR 9213841A FR 9213841 A FR9213841 A FR 9213841A FR 2698231 B1 FR2698231 B1 FR 2698231B1
Authority
FR
France
Prior art keywords
uniform lighting
analysis head
angular non
facsimile
facsimile analysis
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 - Fee Related
Application number
FR9213841A
Other languages
English (en)
Other versions
FR2698231A1 (fr
Inventor
Pierre Sabatier
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.)
Sagem SA
Original Assignee
Sagem 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 Sagem SA filed Critical Sagem SA
Priority to FR9213841A priority Critical patent/FR2698231B1/fr
Publication of FR2698231A1 publication Critical patent/FR2698231A1/fr
Application granted granted Critical
Publication of FR2698231B1 publication Critical patent/FR2698231B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • H04N1/0282—Using a single or a few point light sources, e.g. a laser diode
    • H04N1/02835—Using a single or a few point light sources, e.g. a laser diode in combination with a light guide, e.g. optical fibre, glass plate
    • 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
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • 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
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • H04N1/02885—Means for compensating spatially uneven illumination, e.g. an aperture arrangement

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Light Guides In General And Applications Therefor (AREA)
FR9213841A 1992-11-18 1992-11-18 Tête d'analyse de télécopieur à éclairage angulairement non uniforme. Expired - Fee Related FR2698231B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9213841A FR2698231B1 (fr) 1992-11-18 1992-11-18 Tête d'analyse de télécopieur à éclairage angulairement non uniforme.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9213841A FR2698231B1 (fr) 1992-11-18 1992-11-18 Tête d'analyse de télécopieur à éclairage angulairement non uniforme.

Publications (2)

Publication Number Publication Date
FR2698231A1 FR2698231A1 (fr) 1994-05-20
FR2698231B1 true FR2698231B1 (fr) 1995-02-03

Family

ID=9435643

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9213841A Expired - Fee Related FR2698231B1 (fr) 1992-11-18 1992-11-18 Tête d'analyse de télécopieur à éclairage angulairement non uniforme.

Country Status (1)

Country Link
FR (1) FR2698231B1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547813A (en) * 1984-01-27 1985-10-15 Burroughs Corporation Apparatus for controlling light distribution in line scan optical imaging systems
DE68916133T2 (de) * 1988-09-02 1994-09-22 Fuji Photo Film Co Ltd Bildabtastungsgerät.

Also Published As

Publication number Publication date
FR2698231A1 (fr) 1994-05-20

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20060731