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JPS57157680A - Line sensor for picture reading - Google Patents

Line sensor for picture reading

Info

Publication number
JPS57157680A
JPS57157680A JP56042490A JP4249081A JPS57157680A JP S57157680 A JPS57157680 A JP S57157680A JP 56042490 A JP56042490 A JP 56042490A JP 4249081 A JP4249081 A JP 4249081A JP S57157680 A JPS57157680 A JP S57157680A
Authority
JP
Japan
Prior art keywords
array
light receiving
photodetecting
length
reduced
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
JP56042490A
Other languages
Japanese (ja)
Other versions
JPH0158711B2 (en
Inventor
Takafumi Tsuji
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 JP56042490A priority Critical patent/JPS57157680A/en
Publication of JPS57157680A publication Critical patent/JPS57157680A/en
Publication of JPH0158711B2 publication Critical patent/JPH0158711B2/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
    • 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 Heads (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE:To uniform output levels by arranging straightly plural photodetecting arrays in which the width of a semiconductor photodetecting element on the end of each array in the direction of photodetecting row is reduced so as not to change its light receiving area. CONSTITUTION:A sensor for reading a facsimile device consists of coupled short sensor arrays. Plural light receiving elements PDs (PD1-PD6) are formed on the surface of each array. When the length of paper shifting direction is assumed to (a) and that of the array direction is (b) in light receiving elements other than the one arranged on the end of each array, the light receiving element 22 on the end of the array is adjusted so that the area of the element 22 consists with that of other element by extending the length a' of the paper shifting direction and reducing the length b' of the array direction. Thus even if the width of the light receiving element on the end of the array is reduced in the photodetecting row, the quantity of light reception is not reduced so much, uniforming the output levels when these arrays are connected.
JP56042490A 1981-03-25 1981-03-25 Line sensor for picture reading Granted JPS57157680A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56042490A JPS57157680A (en) 1981-03-25 1981-03-25 Line sensor for picture reading

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56042490A JPS57157680A (en) 1981-03-25 1981-03-25 Line sensor for picture reading

Publications (2)

Publication Number Publication Date
JPS57157680A true JPS57157680A (en) 1982-09-29
JPH0158711B2 JPH0158711B2 (en) 1989-12-13

Family

ID=12637499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56042490A Granted JPS57157680A (en) 1981-03-25 1981-03-25 Line sensor for picture reading

Country Status (1)

Country Link
JP (1) JPS57157680A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0169411A2 (en) * 1984-07-26 1986-01-29 Kabushiki Kaisha Toshiba Image sensor
JPS6133072A (en) * 1984-07-26 1986-02-15 Toshiba Corp Reading device
JPS6180945A (en) * 1984-09-27 1986-04-24 Matsushita Electronics Corp Solid-state image pickup device
JPS61198859A (en) * 1985-02-27 1986-09-03 Toshiba Corp Reader
JPS6242448A (en) * 1985-08-19 1987-02-24 Seiko Epson Corp Solid-state image pickup device
EP0468255A2 (en) * 1990-07-26 1992-01-29 SEIKO INSTRUMENTS & ELECTRONICS LTD. Linear image sensor of the contact type
US5329149A (en) * 1990-10-12 1994-07-12 Seiko Instruments Inc. Image sensor with non-light-transmissive layer having photosensing windows

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5415645A (en) * 1977-06-08 1979-02-05 Seiko Epson Corp Oscillation circuit
JPS5468107A (en) * 1977-11-11 1979-06-01 Toshiba Corp Pick up unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5415645A (en) * 1977-06-08 1979-02-05 Seiko Epson Corp Oscillation circuit
JPS5468107A (en) * 1977-11-11 1979-06-01 Toshiba Corp Pick up unit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0169411A2 (en) * 1984-07-26 1986-01-29 Kabushiki Kaisha Toshiba Image sensor
JPS6133072A (en) * 1984-07-26 1986-02-15 Toshiba Corp Reading device
JPS6180945A (en) * 1984-09-27 1986-04-24 Matsushita Electronics Corp Solid-state image pickup device
JPS61198859A (en) * 1985-02-27 1986-09-03 Toshiba Corp Reader
JPS6242448A (en) * 1985-08-19 1987-02-24 Seiko Epson Corp Solid-state image pickup device
EP0468255A2 (en) * 1990-07-26 1992-01-29 SEIKO INSTRUMENTS & ELECTRONICS LTD. Linear image sensor of the contact type
US5329149A (en) * 1990-10-12 1994-07-12 Seiko Instruments Inc. Image sensor with non-light-transmissive layer having photosensing windows

Also Published As

Publication number Publication date
JPH0158711B2 (en) 1989-12-13

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