JPH03104768U - - Google Patents

Info

Publication number
JPH03104768U
JPH03104768U JP1990014012U JP1401290U JPH03104768U JP H03104768 U JPH03104768 U JP H03104768U JP 1990014012 U JP1990014012 U JP 1990014012U JP 1401290 U JP1401290 U JP 1401290U JP H03104768 U JPH03104768 U JP H03104768U
Authority
JP
Japan
Prior art keywords
drive current
circuit
load
current
supplying
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
JP1990014012U
Other languages
English (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 JP1990014012U priority Critical patent/JPH03104768U/ja
Priority to US07/654,689 priority patent/US5229870A/en
Priority to EP91102116A priority patent/EP0442506B1/en
Priority to DE69115073T priority patent/DE69115073T2/de
Publication of JPH03104768U publication Critical patent/JPH03104768U/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/04036—Details of illuminating systems, e.g. lamps, reflectors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
    • 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
    • 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
    • H04N1/02845—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array
    • H04N1/02865—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array using an array of light sources or a combination of such arrays, e.g. an LED bar
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/395—Linear regulators
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/043—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Led Devices (AREA)
  • Facsimile Heads (AREA)

Description

【図面の簡単な説明】
第１図は本考案の第１の実施例であるＬＥＤデ
イスプレイの回路図、第２図はそのＬＥＤデイス
プレイの光出力の変化を示すグラフ、第３図は本
考案の第２の実施例の回路図、第４図は本考案の
第３の実施例の回路図、第５図は本考案の第４の
実施例の回路図、第６図は本考案の第５の実施例
の回路図、第７図は従来のＬＥＤデイスプレイの
回路図である。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 複数の電流駆動型素子へ駆動電流を供給す
    るための回路において、全素子に接続される共通
    端子を設け、該共通端子に直列又は並列に調整用
    抵抗を付加したことを特徴とする駆動電流調整回
    路。 (2) 電流駆動型負荷へ所定の駆動電流を供給す
    るための回路において、該負荷に直列又は並列に
    、互いに並列に接続した複数の抵抗を接続し、該
    複数抵抗のうちのいずれかを選択することのでき
    る選択手段を設けたことを特徴とする駆動電流調
    整回路。 (3) 電流駆動型負荷へ所定の駆動電流を供給す
    るための回路において、該負荷に、複数の相異な
    る電位を有する電圧供給源を接続し、それらのう
    ちのいずれか１つを選択することのできる選択手
    段を設けたことを特徴とする駆動電流調整回路。
JP1990014012U 1990-02-15 1990-02-15 Pending JPH03104768U (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1990014012U JPH03104768U (ja) 1990-02-15 1990-02-15
US07/654,689 US5229870A (en) 1990-02-15 1991-02-13 Light emitting device capable of readily controlling total quantity of light under a balanced light emitting state of light emitting elements
EP91102116A EP0442506B1 (en) 1990-02-15 1991-02-14 Image reading device
DE69115073T DE69115073T2 (de) 1990-02-15 1991-02-14 Bildlesevorrichtung.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990014012U JPH03104768U (ja) 1990-02-15 1990-02-15

Publications (1)

Publication Number Publication Date
JPH03104768U true JPH03104768U (ja) 1991-10-30

Family

ID=11849288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990014012U Pending JPH03104768U (ja) 1990-02-15 1990-02-15

Country Status (4)

Country Link
US (1) US5229870A (ja)
EP (1) EP0442506B1 (ja)
JP (1) JPH03104768U (ja)
DE (1) DE69115073T2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005307524A (ja) * 2004-04-20 2005-11-04 Taiyo Kiso Kogyo Kk 土壌掘削工具

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9200397A (nl) * 1992-03-04 1993-10-01 Philips Nv Informatie-optekeninrichting.
US5287372A (en) * 1992-04-24 1994-02-15 Hughes Aircraft Company Quasi-resonant diode drive current source
DE69327370T2 (de) * 1992-07-29 2000-06-29 Canon K.K., Tokio/Tokyo Bilderzeugungsgerät und Vorrichtung für die Steuerung der Lichtmenge zur Verwendung in diesem Gerät
US5902993A (en) * 1992-12-28 1999-05-11 Kyocera Corporation Image scanner for image inputting in computers, facsimiles word processor, and the like
EP0703541A1 (en) * 1994-09-23 1996-03-27 Vaisfeld, Sorin, Dr. Apparatus and method for aiding diagnostic analysis of medical images, particularly dental X-ray-images
US5982957A (en) * 1998-03-31 1999-11-09 Eastman Kodak Company Scanner illumination
US6127784A (en) * 1998-08-31 2000-10-03 Dialight Corporation LED driving circuitry with variable load to control output light intensity of an LED
JP2003285456A (ja) * 2002-01-28 2003-10-07 Fuji Photo Film Co Ltd 光定着器及びその照度補正方法並びに感熱プリンタ
JP2004017634A (ja) * 2002-06-20 2004-01-22 Konica Minolta Holdings Inc 画像露光装置
GB2470802B (en) * 2007-11-16 2011-10-05 Uriel Meyer Wittenberg A silver-based thermally conductive composition for thermally coupling LED chips to heat sinks
US20120306392A1 (en) * 2011-06-02 2012-12-06 Taiwan Semiconductor Manufacturing Company, Ltd. Light-emitting diode network
CN203788515U (zh) * 2014-03-11 2014-08-20 东莞嘉盛照明科技有限公司 一种调节发光二极管色温和光通量的电路
CN105465645B (zh) * 2016-01-11 2021-01-19 深圳市立洋光电子股份有限公司 一种用于射灯的可变色cob led及其生产方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2333199A1 (fr) * 1975-11-27 1977-06-24 Broussaud Georges Perfectionnement aux systemes d'illumination
DE2555584A1 (de) * 1975-12-10 1977-06-16 Siemens Ag Anzeigetafel mit mehreren leuchtdioden
GB1543722A (en) * 1976-06-11 1979-04-04 Ferranti Ltd Display device energisation circuits
FR2426381A1 (fr) * 1978-05-18 1979-12-14 Bourboulon Henri Module lumineux en circuit hybride a diodes electroluminescentes
JPS556687A (en) * 1978-06-29 1980-01-18 Handotai Kenkyu Shinkokai Traffic use display
US4639608A (en) * 1983-05-18 1987-01-27 Canon Kabushiki Kaisha Image read-out apparatus with light source driving means
US4706128A (en) * 1983-12-14 1987-11-10 Canon Kabushiki Kaisha Image reading and converting apparatus
DE3635784A1 (de) * 1985-10-21 1987-04-30 Ricoh Kk Lese- und aufzeichnungseinrichtung
JPH0750799B2 (ja) * 1986-04-17 1995-05-31 株式会社東芝 発光装置
DE3622025C1 (en) * 1986-07-01 1987-10-15 Tele Security Foto Ueberwachun Infrared luminaire
US4788600A (en) * 1987-04-15 1988-11-29 Eastman Kodak Company Video apparatus for generating an adjustable contrast video signal from a photographic print
US4814630A (en) * 1987-06-29 1989-03-21 Ncr Corporation Document illuminating apparatus using light sources A, B, and C in periodic arrays
JPH01146460A (ja) * 1987-12-02 1989-06-08 Sharp Corp 画像読み取り装置
JP2650330B2 (ja) * 1988-06-28 1997-09-03 ソニー株式会社 テープカセット装着装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005307524A (ja) * 2004-04-20 2005-11-04 Taiyo Kiso Kogyo Kk 土壌掘削工具

Also Published As

Publication number Publication date
DE69115073T2 (de) 1996-07-25
US5229870A (en) 1993-07-20
DE69115073D1 (de) 1996-01-18
EP0442506B1 (en) 1995-12-06
EP0442506A2 (en) 1991-08-21
EP0442506A3 (en) 1991-12-11

Similar Documents

Publication Publication Date Title
JPH03104768U (ja)
JPH01104754U (ja)
JPS6417593U (ja)
JPH046075Y2 (ja)
JPH074626Y2 (ja) 発光針付時計
JPH0742968U (ja) マルチチップｌｅｄ
JPS6166964U (ja)
JPS6415291U (ja)
JPH0356160U (ja)
JPH07129102A (ja) 時分割発光ダイオード点灯回路
JPH0248819A (ja) 制御機器の入力装置
JPH0219115U (ja)
JPS6331451Y2 (ja)
JPS6434694U (ja)
JPS58128483U (ja) 信号レベル発光表示回路
JPH02281763A (ja) 発光ダイオード点灯回路
JPS60104882U (ja) セグメント方式数字表示器
JPS59137619U (ja) 制御電圧切換回路
JPS6073265U (ja) 発光ダイオ−ド点灯回路
JPS59155889U (ja) スイツチングレギユレ−タ
JPS6235267U (ja)
JPS59191060U (ja) 燃焼器
JPS62147316A (ja) 発光ダイオ−ドの制御回路
JPH04123556U (ja) Ｌｅｄ光源
JPS6151518U (ja)