TW202421960A - 導光體、照明裝置及接觸式影像感測器 - Google Patents

導光體、照明裝置及接觸式影像感測器 Download PDF

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Publication number
TW202421960A
TW202421960A TW112124227A TW112124227A TW202421960A TW 202421960 A TW202421960 A TW 202421960A TW 112124227 A TW112124227 A TW 112124227A TW 112124227 A TW112124227 A TW 112124227A TW 202421960 A TW202421960 A TW 202421960A
Authority
TW
Taiwan
Prior art keywords
light
light guide
diffusion structure
image sensor
reflecting surface
Prior art date
Application number
TW112124227A
Other languages
English (en)
Chinese (zh)
Inventor
網干和敬
橘高重雄
石丸剛志
保科和也
Original Assignee
日商日本板硝子股份有限公司
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 日商日本板硝子股份有限公司 filed Critical 日商日本板硝子股份有限公司
Publication of TW202421960A publication Critical patent/TW202421960A/zh

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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/10—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces
    • H04N1/1061—Details relating to flat picture-bearing surfaces, e.g. transparent platen
    • 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
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • 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
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • 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
    • H04N1/02805—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a two-dimensional array
    • 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
    • H04N1/02845—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
    • H04N1/02855—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 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
    • H04N1/0289—Light diffusing elements, e.g. plates or filters
    • 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
    • H04N1/02895—Additional elements in the illumination means or cooperating with the illumination means, e.g. filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Light Guides In General And Applications Therefor (AREA)
TW112124227A 2022-07-13 2023-06-29 導光體、照明裝置及接觸式影像感測器 TW202421960A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP2022/027602 WO2024013899A1 (ja) 2022-07-13 2022-07-13 導光体、照明装置および密着型イメージセンサ
WOPCT/JP2022/027602 2022-07-13

Publications (1)

Publication Number Publication Date
TW202421960A true TW202421960A (zh) 2024-06-01

Family

ID=89536184

Family Applications (1)

Application Number Title Priority Date Filing Date
TW112124227A TW202421960A (zh) 2022-07-13 2023-06-29 導光體、照明裝置及接觸式影像感測器

Country Status (5)

Country Link
US (1) US20250150543A1 (https=)
JP (1) JPWO2024013899A1 (https=)
CN (1) CN119487329A (https=)
TW (1) TW202421960A (https=)
WO (1) WO2024013899A1 (https=)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2006120932A1 (ja) * 2005-05-12 2008-12-18 日本板硝子株式会社 導光体及び画像読取装置
JP2010147859A (ja) * 2008-12-19 2010-07-01 Panasonic Corp 線状照明装置及びそれを用いた密着型イメージセンサ及び画像読取システム
JP2020065226A (ja) * 2018-10-19 2020-04-23 グローリー株式会社 イメージセンサ用照明装置及びイメージセンサ

Also Published As

Publication number Publication date
CN119487329A (zh) 2025-02-18
US20250150543A1 (en) 2025-05-08
WO2024013899A1 (ja) 2024-01-18
JPWO2024013899A1 (https=) 2024-01-18

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