JPS5530215A - Color picture reader - Google Patents

Color picture reader

Info

Publication number
JPS5530215A
JPS5530215A JP10277778A JP10277778A JPS5530215A JP S5530215 A JPS5530215 A JP S5530215A JP 10277778 A JP10277778 A JP 10277778A JP 10277778 A JP10277778 A JP 10277778A JP S5530215 A JPS5530215 A JP S5530215A
Authority
JP
Japan
Prior art keywords
color
light sources
original
sequentially
primary
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
JP10277778A
Other languages
Japanese (ja)
Inventor
Koichi Ejiri
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP10277778A priority Critical patent/JPS5530215A/en
Publication of JPS5530215A publication Critical patent/JPS5530215A/en
Pending 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
    • H04N1/46—Colour picture communication systems
    • H04N1/48—Picture signal generators
    • H04N1/482—Picture signal generators using the same detector device sequentially for different colour components
    • H04N1/484—Picture signal generators using the same detector device sequentially for different colour components with sequential colour illumination of the original

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Color Image Communication Systems (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Image Input (AREA)

Abstract

PURPOSE:To improve color reproducibility and also to remove shading caused by unevenness of the surface of an original by reading color information by sequentially lighting several light sources differing in color including several light source of a certain color. CONSTITUTION:Among three-primary-color light sources 1 to 4, light sources 3 and 4, for example, are paired up into an identical-color light source illuminating one point P on original 5. Then, three-primary-color light sources are sequentially lighted, color by color, for time of DELTAt to illuminate part P on original 4. next, images differing in color are sequentially formed on image sensor 7 by image-forming lens 6 to obtain a picture signal.
JP10277778A 1978-08-25 1978-08-25 Color picture reader Pending JPS5530215A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10277778A JPS5530215A (en) 1978-08-25 1978-08-25 Color picture reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10277778A JPS5530215A (en) 1978-08-25 1978-08-25 Color picture reader

Publications (1)

Publication Number Publication Date
JPS5530215A true JPS5530215A (en) 1980-03-04

Family

ID=14336571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10277778A Pending JPS5530215A (en) 1978-08-25 1978-08-25 Color picture reader

Country Status (1)

Country Link
JP (1) JPS5530215A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56169472A (en) * 1980-05-31 1981-12-26 Ricoh Co Ltd Color picture information reader
US4318122A (en) * 1980-10-06 1982-03-02 International Business Machines Corporation Electronic color separation
JPS6197262U (en) * 1984-12-03 1986-06-21
JPS61281761A (en) * 1985-06-06 1986-12-12 キウイソフト　プログラムズ　リミテツド Method and apparatus for capturing color image for color facsimile or color data tranmission or storage
US4642679A (en) * 1984-06-15 1987-02-10 Sharp Kabushiki Kaisha Color image reading apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56169472A (en) * 1980-05-31 1981-12-26 Ricoh Co Ltd Color picture information reader
US4318122A (en) * 1980-10-06 1982-03-02 International Business Machines Corporation Electronic color separation
US4642679A (en) * 1984-06-15 1987-02-10 Sharp Kabushiki Kaisha Color image reading apparatus
JPS6197262U (en) * 1984-12-03 1986-06-21
JPS61281761A (en) * 1985-06-06 1986-12-12 キウイソフト　プログラムズ　リミテツド Method and apparatus for capturing color image for color facsimile or color data tranmission or storage

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