JPH0340551B2 - - Google Patents

Info

Publication number
JPH0340551B2
JPH0340551B2 JP56027214A JP2721481A JPH0340551B2 JP H0340551 B2 JPH0340551 B2 JP H0340551B2 JP 56027214 A JP56027214 A JP 56027214A JP 2721481 A JP2721481 A JP 2721481A JP H0340551 B2 JPH0340551 B2 JP H0340551B2
Authority
JP
Japan
Prior art keywords
light
light emitting
light source
linear
shaped lens
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 - Lifetime
Application number
JP56027214A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57141174A (en
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 filed Critical
Priority to JP56027214A priority Critical patent/JPS57141174A/ja
Publication of JPS57141174A publication Critical patent/JPS57141174A/ja
Publication of JPH0340551B2 publication Critical patent/JPH0340551B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024Details of scanning heads ; Means for illuminating the original
    • H04N1/028Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/02815Means for illuminating the original, not specific to a particular type of pick-up head

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Image Input (AREA)
  • Facsimile Scanning Arrangements (AREA)
JP56027214A 1981-02-26 1981-02-26 Linear light source of light emitting diode Granted JPS57141174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56027214A JPS57141174A (en) 1981-02-26 1981-02-26 Linear light source of light emitting diode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56027214A JPS57141174A (en) 1981-02-26 1981-02-26 Linear light source of light emitting diode

Publications (2)

Publication Number Publication Date
JPS57141174A JPS57141174A (en) 1982-09-01
JPH0340551B2 true JPH0340551B2 (de) 1991-06-19

Family

ID=12214846

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56027214A Granted JPS57141174A (en) 1981-02-26 1981-02-26 Linear light source of light emitting diode

Country Status (1)

Country Link
JP (1) JPS57141174A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972269A (ja) * 1982-10-18 1984-04-24 Alps Electric Co Ltd 発光ダイオ−ドおよびこれを用いた情報読取装置
JPS6083463A (ja) * 1983-10-13 1985-05-11 Nec Corp 原稿読み取り用光源
JPH0616363B2 (ja) * 1986-06-27 1994-03-02 株式会社小糸製作所 照明装置
JPS63314962A (ja) * 1987-06-18 1988-12-22 Fuji Photo Film Co Ltd 原稿照明装置
US5196950A (en) * 1988-08-04 1993-03-23 Ricoh Company, Ltd. Optical reader and light source used for the same
JP2011082969A (ja) * 2009-09-10 2011-04-21 Ricoh Co Ltd 照明装置、画像読取装置及び画像形成装置
US8646941B1 (en) 2010-06-14 2014-02-11 Humanscale Corporation Lighting apparatus and method

Also Published As

Publication number Publication date
JPS57141174A (en) 1982-09-01

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