JPS56153879A - Light source for facsimile or the like - Google Patents

Light source for facsimile or the like

Info

Publication number
JPS56153879A
JPS56153879A JP5626380A JP5626380A JPS56153879A JP S56153879 A JPS56153879 A JP S56153879A JP 5626380 A JP5626380 A JP 5626380A JP 5626380 A JP5626380 A JP 5626380A JP S56153879 A JPS56153879 A JP S56153879A
Authority
JP
Japan
Prior art keywords
light emitting
facsimile
light source
original
diode array
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
JP5626380A
Other languages
Japanese (ja)
Inventor
Kazumi Komiya
Ko Takahashi
Yasuyuki Owada
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.)
Nippon Telegraph and Telephone Corp
Stanley Electric Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Stanley Electric 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 Nippon Telegraph and Telephone Corp, Stanley Electric Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP5626380A priority Critical patent/JPS56153879A/en
Publication of JPS56153879A publication Critical patent/JPS56153879A/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
    • H04N1/024—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

Landscapes

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

Abstract

PURPOSE:To make the whole of a light emitting part uniform in a light source for the facsimile, by arranging the interval of each chip of a light emitting diode array so as to make approximately equal to or shorter than the distance to the original surface. CONSTITUTION:In a read system for the facsimile or the like where the original is illuminated by the light emitting diode array and the reflected light is subjected to photoelectric conversion, chips 5 of the light emitting diode array are so arranged that the interval (a) of them is approximately equal to or shorter than distance (b) to the surface of original 2. As a result, since the whole of the light emitting part becomes uniform in the light source, a uniform illumination distribution is obtained.
JP5626380A 1980-04-30 1980-04-30 Light source for facsimile or the like Pending JPS56153879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5626380A JPS56153879A (en) 1980-04-30 1980-04-30 Light source for facsimile or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5626380A JPS56153879A (en) 1980-04-30 1980-04-30 Light source for facsimile or the like

Publications (1)

Publication Number Publication Date
JPS56153879A true JPS56153879A (en) 1981-11-28

Family

ID=13022185

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5626380A Pending JPS56153879A (en) 1980-04-30 1980-04-30 Light source for facsimile or the like

Country Status (1)

Country Link
JP (1) JPS56153879A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58177957U (en) * 1982-05-24 1983-11-28 日本電信電話株式会社 Multicolor linear light source using light emitting diodes
JPS62143942U (en) * 1986-03-07 1987-09-10
JP2008197432A (en) * 2007-02-14 2008-08-28 Kyocera Mita Corp Illuminating device and image reader using it
WO2010084679A1 (en) * 2009-01-21 2010-07-29 シャープ株式会社 Lighting device, image reader, and image forming device
JP2011082969A (en) * 2009-09-10 2011-04-21 Ricoh Co Ltd Illumination device, image reading apparatus and image forming apparatus
JP2011125052A (en) * 2011-01-24 2011-06-23 Sharp Corp Illuminance non-uniformity evaluating method and illuminance non-uniformity evaluating apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58177957U (en) * 1982-05-24 1983-11-28 日本電信電話株式会社 Multicolor linear light source using light emitting diodes
JPS6320132Y2 (en) * 1982-05-24 1988-06-03
JPS62143942U (en) * 1986-03-07 1987-09-10
JP2008197432A (en) * 2007-02-14 2008-08-28 Kyocera Mita Corp Illuminating device and image reader using it
WO2010084679A1 (en) * 2009-01-21 2010-07-29 シャープ株式会社 Lighting device, image reader, and image forming device
JP2010171611A (en) * 2009-01-21 2010-08-05 Sharp Corp Lighting device, image reading apparatus and image forming apparatus
CN102292971A (en) * 2009-01-21 2011-12-21 夏普株式会社 Lighting device, image reader, and image forming device
US8599447B2 (en) 2009-01-21 2013-12-03 Sharp Kabushiki Kaisha Illuminating apparatus, image reading apparatus, and image forming apparatus
JP2011082969A (en) * 2009-09-10 2011-04-21 Ricoh Co Ltd Illumination device, image reading apparatus and image forming apparatus
JP2011125052A (en) * 2011-01-24 2011-06-23 Sharp Corp Illuminance non-uniformity evaluating method and illuminance non-uniformity evaluating apparatus

Similar Documents

Publication Publication Date Title
GB8514340D0 (en) Light emitting diode array
JPS5779688A (en) Surface emitting light emitting diode
EP0288184A3 (en) Semiconductor diode laser array
GB8323243D0 (en) Light emitting diode
AU2767284A (en) Light emitting diode array
JPS56153879A (en) Light source for facsimile or the like
JPS53140048A (en) Light receiving element
EP0180479A3 (en) Light-emitting diode array
SE8401410D0 (en) SET TO META SIZE DISTRIBUTION
JPS56137687A (en) Device having plural light emitting semiconductor diodes
JPS5376047A (en) Light source of optical reader
JPS6411203A (en) Lighting device
JPS5780784A (en) Light emitting diode
GB8722946D0 (en) Light emitting diode array
JPS57211869A (en) Lighting device
JPS5534496A (en) Indicating light emitting diode array
JPS5693382A (en) Light emitting diode
JPS5341118A (en) Solid state scanning system
JPS6474414A (en) Optical displacement detector
JPS571930A (en) Equal magnification type photosensor
JPS5631270A (en) Transmission original illuminating unit
JPS53115191A (en) Production of gap light emiting diode
JPS56120259A (en) Reader for equimultiple type video information
JPS55125765A (en) Read-in unit
JPS57118470A (en) Optical sensor array device