JP4633159B2 - 照明装置、画像読取装置及び画像形成装置 - Google Patents
照明装置、画像読取装置及び画像形成装置 Download PDFInfo
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- JP4633159B2 JP4633159B2 JP2008280075A JP2008280075A JP4633159B2 JP 4633159 B2 JP4633159 B2 JP 4633159B2 JP 2008280075 A JP2008280075 A JP 2008280075A JP 2008280075 A JP2008280075 A JP 2008280075A JP 4633159 B2 JP4633159 B2 JP 4633159B2
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- 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
- H04N1/02825—Using a single or a few point light sources, e.g. a laser diode in combination with at least one reflector which is fixed in relation to the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/505—Cooling arrangements characterised by the adaptation for cooling of specific components of reflectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
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- 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
-
- 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
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- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0085—Means for removing heat created by the light source from the package
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/54—Lamp housings; Illuminating means
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- 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
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- 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
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/32—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head
- G03G15/326—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head by application of light, e.g. using a LED array
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- 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
- H04N1/0282—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
- H04N1/024—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
- H04N1/02885—Means for compensating spatially uneven illumination, e.g. an aperture arrangement
-
- 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
- G03G15/0435—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 by introducing an optical element in the optical path, e.g. a filter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/0077—Types of the still picture apparatus
- H04N2201/0094—Multifunctional device, i.e. a device capable of all of reading, reproducing, copying, facsimile transception, file transception
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
- H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
- H04N2201/02454—Element mounted or supported
- H04N2201/02462—Illuminating means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
- H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
- H04N2201/02466—Mounting or supporting method
- H04N2201/02474—Clasping; Clamping
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
- H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
- H04N2201/02479—Mounting or supporting means
- H04N2201/02485—Dedicated element, e.g. bracket or arm
Description
画像形成装置Dの装置本体D’は、露光装置1、現像装置2(2a,2b,2c,2d)、像担持体として作用する感光体ドラム3(3a,3b,3c,3d)、帯電器5(5a,5b,5c,5d)、クリーナ装置4(4a,4b,4c,4d)、転写部として作用する中間転写ローラ6(6a,6b,6c,6d)を含む中間転写ベルト装置8、定着装置12、シート搬送装置50、給紙部として作用する給紙トレイ10、及び排紙部として作用する排紙トレイ15を備えている。
図2は、図1に示す画像読取装置100の概略縦断面図であり、図3は、図1に示す画像読取装置100の概略斜視図である。
本発明の実施形態に係る光源ユニットとして、一つ又は二つ以上の導光部材を備えたものとして構成することができる。ここでは、二つの第1及び第2導光部材213a,213bを備えた光源ユニット210を例にとって以下に説明する。
210 光源ユニット(照明装置の一例)
211a’,211b’ 一方の第1及び第2光源部
211a”,211b” 他方の第1及び第2光源部
213a,213b 第1及び第2導光部材
215a,215b 第1及び第2反射部材
216a,216b 第1及び第2保持部材
2161a,2161b 第1及び第2保持部
2162a,2162b 第1及び第2傾斜部
D 画像形成装置
G 被写体である原稿
M 光射出面
Xa,Xb 幅方向
Y 長手方向
α 保持部のコ字状開放端における幅方向の長さ
β 保持部のコ字状基端における幅方向の長さ
γ 導光部材の幅方向の長さ
Claims (7)
- 光源部と、透光性を有する長尺な導光部材であって、前記光源部からの光を導光することで長手方向に沿った長尺な光射出面から被写体を照明する導光部材と、前記導光部材を保持する保持部材と、前記保持部材を支持する支持部を有する支持部材とを備えた照明装置であって、
前記保持部材は、前記導光部材を着脱自在に保持する保持部と、前記光源部から前記導光部材を通して前記光射出面から射出される光を反射し、かつ、前記導光部材から遠ざかるに従って斜めに開くように前記保持部の前記光射出面側先端から延設された傾斜部とを有しており、
前記保持部の前記導光部材を保持する保持面は、前記導光部材内の光を反射させる反射面として作用し、
前記保持部は、長手方向から視た側面視でコ字状に形成されており、かつ、前記導光部材をコ字状内面で着脱自在に嵌着保持しており、
前記導光部材は、長手方向から視た側面視で正方形状又は長方形状に形成されており、かつ、前記導光部材の幅方向の長さは前記保持部のコ字状基端における幅方向の長さ以下であり、
前記導光部材が保持されていない状態での前記保持部のコ字状開放端における幅方向の長さは、前記導光部材の幅方向の長さより短いことを特徴とする照明装置。 - 請求項1に記載の照明装置において、
前記保持部の前記導光部材を保持する保持面及び前記傾斜部の内面に反射部材が設けられていることを特徴とする照明装置。 - 請求項1又は請求項2に記載の照明装置において、
前記保持部は、前記導光部材を密着させた状態で保持していることを特徴とする照明装置。 - 請求項1から請求項3までの何れか一つに記載の照明装置において、
前記光源部は、前記導光部材の長手方向両側にそれぞれ設けられており、
前記導光部材は、一方の光源部からの光を長手方向一端面から導光し、かつ、他方の光源部からの光を長手方向他端面から導光することで前記光射出面から前記被写体に光照射するものであることを特徴とする照明装置。 - 請求項1から請求項4までの何れか一つに記載の照明装置において、
前記保持部は、バネ性を有する金属材料で構成されていることを特徴とする照明装置。 - 請求項1から請求項5までの何れか一つに記載の照明装置を備えたことを特徴とする画像読取装置。
- 請求項6記載の画像読取装置を備えたことを特徴とする画像形成装置。
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008280075A JP4633159B2 (ja) | 2008-10-30 | 2008-10-30 | 照明装置、画像読取装置及び画像形成装置 |
CN201410171297.8A CN104010108B (zh) | 2008-10-30 | 2009-10-09 | 照明装置、图像读取装置及图像形成装置 |
US13/062,745 US8787799B2 (en) | 2008-10-30 | 2009-10-09 | Illuminating device, image reading apparatus and image forming apparatus |
CN200980142949.2A CN102197636B (zh) | 2008-10-30 | 2009-10-09 | 照明装置、图像读取装置及图像形成装置 |
PCT/JP2009/067624 WO2010050353A1 (ja) | 2008-10-30 | 2009-10-09 | 照明装置、画像読取装置及び画像形成装置 |
US14/298,357 US9383082B2 (en) | 2008-10-30 | 2014-06-06 | Illuminating device, image reading apparatus and image forming apparatus |
US15/171,350 US9948811B2 (en) | 2008-10-30 | 2016-06-02 | Illuminating device, image reading apparatus and image forming apparatus |
US15/915,141 US10412254B2 (en) | 2008-10-30 | 2018-03-08 | Illuminating device, image reading apparatus and image forming apparatus |
US16/526,730 US20190356809A1 (en) | 2008-10-30 | 2019-07-30 | Illuminating device, image reading apparatus and image forming apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2008280075A JP4633159B2 (ja) | 2008-10-30 | 2008-10-30 | 照明装置、画像読取装置及び画像形成装置 |
Publications (2)
Publication Number | Publication Date |
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JP2010109725A JP2010109725A (ja) | 2010-05-13 |
JP4633159B2 true JP4633159B2 (ja) | 2011-02-16 |
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JP2008280075A Active JP4633159B2 (ja) | 2008-10-30 | 2008-10-30 | 照明装置、画像読取装置及び画像形成装置 |
Country Status (4)
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US (5) | US8787799B2 (ja) |
JP (1) | JP4633159B2 (ja) |
CN (2) | CN104010108B (ja) |
WO (1) | WO2010050353A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4633159B2 (ja) | 2008-10-30 | 2011-02-16 | シャープ株式会社 | 照明装置、画像読取装置及び画像形成装置 |
JP4757340B2 (ja) * | 2009-10-30 | 2011-08-24 | シャープ株式会社 | 照明装置、その照明装置を備える画像読取り装置、その画像読取り装置を備える画像形成装置 |
JP5538341B2 (ja) * | 2011-10-21 | 2014-07-02 | 京セラドキュメントソリューションズ株式会社 | 画像読取装置及び画像形成装置 |
JP5900795B2 (ja) * | 2012-03-14 | 2016-04-06 | 富士ゼロックス株式会社 | 発光装置及び画像読取装置 |
JP2014022974A (ja) * | 2012-07-19 | 2014-02-03 | Fuji Xerox Co Ltd | 画像読取装置及び画像形成装置 |
EP2875446A4 (en) * | 2012-07-23 | 2016-09-28 | Hewlett Packard Development Co | CLASSIFICATION OF DOCUMENT |
JP6359898B2 (ja) * | 2014-07-03 | 2018-07-18 | シャープ株式会社 | 照明装置、画像読取装置及びそれを備えた画像形成装置 |
JP6889390B2 (ja) * | 2016-11-09 | 2021-06-18 | コニカミノルタ株式会社 | 画像読取装置 |
JP7003646B2 (ja) * | 2017-12-26 | 2022-01-20 | 富士フイルムビジネスイノベーション株式会社 | 発光装置、画像読取装置、画像形成装置 |
WO2019138750A1 (ja) * | 2018-01-11 | 2019-07-18 | 三菱電機株式会社 | 画像読取装置 |
JP2019216381A (ja) * | 2018-06-14 | 2019-12-19 | 京セラドキュメントソリューションズ株式会社 | 画像読取装置及びそれを備えた画像形成装置 |
JP7181051B2 (ja) * | 2018-10-18 | 2022-11-30 | シャープ株式会社 | 原稿搬送装置および画像形成装置 |
JP7329179B2 (ja) * | 2019-09-27 | 2023-08-18 | 京セラドキュメントソリューションズ株式会社 | 画像読取装置 |
JP2022074332A (ja) * | 2020-11-04 | 2022-05-18 | 株式会社ヴィーネックス | 光ラインセンサ |
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JP2008172562A (ja) | 2007-01-12 | 2008-07-24 | Ricoh Co Ltd | 照明装置、画像読取装置、画像形成装置 |
JP2009021158A (ja) * | 2007-07-13 | 2009-01-29 | Rohm Co Ltd | 線状光源装置 |
US7954988B2 (en) * | 2007-07-31 | 2011-06-07 | Samung Electronics Co., Ltd. | Scanner module and image scanning apparatus employing the same |
JP4633159B2 (ja) * | 2008-10-30 | 2011-02-16 | シャープ株式会社 | 照明装置、画像読取装置及び画像形成装置 |
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2008
- 2008-10-30 JP JP2008280075A patent/JP4633159B2/ja active Active
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2009
- 2009-10-09 CN CN201410171297.8A patent/CN104010108B/zh not_active Expired - Fee Related
- 2009-10-09 WO PCT/JP2009/067624 patent/WO2010050353A1/ja active Application Filing
- 2009-10-09 US US13/062,745 patent/US8787799B2/en active Active
- 2009-10-09 CN CN200980142949.2A patent/CN102197636B/zh not_active Expired - Fee Related
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JPH097414A (ja) * | 1995-06-16 | 1997-01-10 | Sanyo Electric Co Ltd | 線状光源 |
JPH10190960A (ja) * | 1996-12-27 | 1998-07-21 | Rohm Co Ltd | 線状光源装置およびこの線状光源装置を用いた画像読み取り装置 |
JPH1155464A (ja) * | 1997-08-06 | 1999-02-26 | Rohm Co Ltd | 導光部材、この導光部材を用いた線状光源装置、および画像読み取り装置 |
Also Published As
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CN104010108B (zh) | 2017-04-12 |
US20140285857A1 (en) | 2014-09-25 |
US9948811B2 (en) | 2018-04-17 |
JP2010109725A (ja) | 2010-05-13 |
WO2010050353A1 (ja) | 2010-05-06 |
CN102197636A (zh) | 2011-09-21 |
US8787799B2 (en) | 2014-07-22 |
US20110164413A1 (en) | 2011-07-07 |
US20190356809A1 (en) | 2019-11-21 |
US20180198942A1 (en) | 2018-07-12 |
US10412254B2 (en) | 2019-09-10 |
US20160352954A1 (en) | 2016-12-01 |
US9383082B2 (en) | 2016-07-05 |
CN102197636B (zh) | 2014-08-27 |
CN104010108A (zh) | 2014-08-27 |
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