DE112020007020T5 - Beleuchtungseinrichtung und bildscanner - Google Patents

Beleuchtungseinrichtung und bildscanner Download PDF

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Publication number
DE112020007020T5
DE112020007020T5 DE112020007020.4T DE112020007020T DE112020007020T5 DE 112020007020 T5 DE112020007020 T5 DE 112020007020T5 DE 112020007020 T DE112020007020 T DE 112020007020T DE 112020007020 T5 DE112020007020 T5 DE 112020007020T5
Authority
DE
Germany
Prior art keywords
light
curved surface
light source
light guide
incident
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
DE112020007020.4T
Other languages
German (de)
English (en)
Inventor
Taisuke Makita
Hiroyuki Kawano
Shigeru Takushima
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of DE112020007020T5 publication Critical patent/DE112020007020T5/de
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • 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
    • H04N1/0282—Using a single or a few point light sources, e.g. a laser diode
    • H04N1/02835—Using a single or a few point light sources, e.g. a laser diode in combination with a light guide, e.g. optical fibre, glass plate
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Facsimile Heads (AREA)
  • Planar Illumination Modules (AREA)
DE112020007020.4T 2020-04-03 2020-04-03 Beleuchtungseinrichtung und bildscanner Pending DE112020007020T5 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/015302 WO2021199422A1 (ja) 2020-04-03 2020-04-03 照明装置及びイメージスキャナ

Publications (1)

Publication Number Publication Date
DE112020007020T5 true DE112020007020T5 (de) 2023-04-13

Family

ID=77929956

Family Applications (1)

Application Number Title Priority Date Filing Date
DE112020007020.4T Pending DE112020007020T5 (de) 2020-04-03 2020-04-03 Beleuchtungseinrichtung und bildscanner

Country Status (5)

Country Link
US (1) US12248165B2 (https=)
JP (1) JP7341319B2 (https=)
CN (1) CN115336241B (https=)
DE (1) DE112020007020T5 (https=)
WO (1) WO2021199422A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7682760B2 (ja) * 2021-10-13 2025-05-26 株式会社ジャパンディスプレイ 照明装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010193360A (ja) 2009-02-20 2010-09-02 Nisca Corp Ｌｅｄ光源及び画像読取装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08101654A (ja) 1994-09-29 1996-04-16 Toshiba Lighting & Technol Corp 照明装置および誘導灯装置
US5839812A (en) * 1995-07-18 1998-11-24 Gl Displays, Inc. Flat parallel light source
JP3453495B2 (ja) * 1996-07-26 2003-10-06 キヤノン株式会社 密着型イメージセンサ及び画像読取装置
US6496285B1 (en) 1998-02-25 2002-12-17 Rohm Co., Ltd. Image reading apparatus
JPH11313195A (ja) * 1998-02-25 1999-11-09 Rohm Co Ltd 画像読み取り装置
JP4667037B2 (ja) * 2002-06-21 2011-04-06 ウェイヴィーン・インコーポレイテッド マルチランプ照明システム
JP2008270885A (ja) * 2007-04-16 2008-11-06 Matsushita Electric Ind Co Ltd 照明装置およびこれを用いた原稿読取り装置
TW201030284A (en) * 2008-10-30 2010-08-16 Zeon Corp Light source device and liquid cristal display device
US8488216B2 (en) * 2009-02-20 2013-07-16 Nisca Corporation LED light source and image reading apparatus
JP5780087B2 (ja) * 2011-09-28 2015-09-16 日本精機株式会社 照明装置
JP5848419B2 (ja) * 2012-03-30 2016-01-27 キヤノン・コンポーネンツ株式会社 イメージセンサユニット、画像読取装置、画像形成装置
JP2015179571A (ja) 2014-03-18 2015-10-08 株式会社東芝 導光体および照明装置
JP2017228440A (ja) 2016-06-23 2017-12-28 スタンレー電気株式会社 車両用信号灯
CN109239965B (zh) * 2018-09-30 2021-11-23 京东方科技集团股份有限公司 一种显示器件及其控制方法
FR3088736B1 (fr) * 2018-11-15 2020-10-30 Thales Sa Dispositif d'eclairage compatible d'equipement(s) de vision nocturne a fenetre d'injection laterale de lumiere diurne et nocturne

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010193360A (ja) 2009-02-20 2010-09-02 Nisca Corp Ｌｅｄ光源及び画像読取装置

Also Published As

Publication number Publication date
US20230144125A1 (en) 2023-05-11
WO2021199422A1 (ja) 2021-10-07
CN115336241B (zh) 2024-04-09
JP7341319B2 (ja) 2023-09-08
JPWO2021199422A1 (https=) 2021-10-07
CN115336241A (zh) 2022-11-11
US12248165B2 (en) 2025-03-11

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