JPS56137767A - Original reader - Google Patents

Original reader

Info

Publication number
JPS56137767A
JPS56137767A JP3969480A JP3969480A JPS56137767A JP S56137767 A JPS56137767 A JP S56137767A JP 3969480 A JP3969480 A JP 3969480A JP 3969480 A JP3969480 A JP 3969480A JP S56137767 A JPS56137767 A JP S56137767A
Authority
JP
Japan
Prior art keywords
original
optical fibers
light emitting
light
driven
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.)
Granted
Application number
JP3969480A
Other languages
Japanese (ja)
Other versions
JPS6331151B2 (en
Inventor
Takeshi Goto
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3969480A priority Critical patent/JPS56137767A/en
Publication of JPS56137767A publication Critical patent/JPS56137767A/en
Publication of JPS6331151B2 publication Critical patent/JPS6331151B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To prevent a decrease in the quantity of circumferential light due to the use of a lens, by leading picture information on an original to photoelectric converting elements by using many optical fibers and by converting it into an electric signal. CONSTITUTION:Light emitting diodes 111-11M are driven through switches 141- 14M which are switched under the control of control circuit 15. Outputs of phototransistors 121-12N are led out via switches 171-17N driven by control circuit 19. Near the surface of original 22, light emitting and photodetecting optical fibers 21 and 23 are arranged. Then, when one light emitting diode turns on, light is transmitted via fiber 21 in the group and the reflected light of original 22 is photodetected by phototransistor 12 by way of fiber 23. Therefore, since the optical fibers are used as an optical system, uniform resolution can be obtained even at the circumferential part of the original surface.
JP3969480A 1980-03-28 1980-03-28 Original reader Granted JPS56137767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3969480A JPS56137767A (en) 1980-03-28 1980-03-28 Original reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3969480A JPS56137767A (en) 1980-03-28 1980-03-28 Original reader

Publications (2)

Publication Number Publication Date
JPS56137767A true JPS56137767A (en) 1981-10-27
JPS6331151B2 JPS6331151B2 (en) 1988-06-22

Family

ID=12560138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3969480A Granted JPS56137767A (en) 1980-03-28 1980-03-28 Original reader

Country Status (1)

Country Link
JP (1) JPS56137767A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61123357A (en) * 1984-11-20 1986-06-11 Brother Ind Ltd Optical reader
JPS61123359A (en) * 1984-11-20 1986-06-11 Brother Ind Ltd Optical reader

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4989414A (en) * 1972-12-26 1974-08-27
JPS5131050A (en) * 1974-07-08 1976-03-16 American Cyanamid Co Tennensuino seichoho
JPS5236506U (en) * 1975-08-30 1977-03-15

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4989414A (en) * 1972-12-26 1974-08-27
JPS5131050A (en) * 1974-07-08 1976-03-16 American Cyanamid Co Tennensuino seichoho
JPS5236506U (en) * 1975-08-30 1977-03-15

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61123357A (en) * 1984-11-20 1986-06-11 Brother Ind Ltd Optical reader
JPS61123359A (en) * 1984-11-20 1986-06-11 Brother Ind Ltd Optical reader
JPH0411154B2 (en) * 1984-11-20 1992-02-27

Also Published As

Publication number Publication date
JPS6331151B2 (en) 1988-06-22

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