MA49243B1 - Dispositif d'éclairage pour un système optique d'un appareil de lecture - Google Patents

Dispositif d'éclairage pour un système optique d'un appareil de lecture

Info

Publication number
MA49243B1
MA49243B1 MA49243A MA49243A MA49243B1 MA 49243 B1 MA49243 B1 MA 49243B1 MA 49243 A MA49243 A MA 49243A MA 49243 A MA49243 A MA 49243A MA 49243 B1 MA49243 B1 MA 49243B1
Authority
MA
Morocco
Prior art keywords
reflector
light
region
lighting device
optical system
Prior art date
Application number
MA49243A
Other languages
English (en)
Inventor
Todor Dinoev
Pablo Sempere
Nicola Duca
François Huot
Original Assignee
Sicpa Holding Sa
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 Sicpa Holding Sa filed Critical Sicpa Holding Sa
Publication of MA49243B1 publication Critical patent/MA49243B1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10712—Fixed beam scanning
    • G06K7/10722—Photodetector array or CCD scanning
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10712—Fixed beam scanning
    • G06K7/10722—Photodetector array or CCD scanning
    • G06K7/10742—Photodetector array or CCD scanning including a diffuser for diffusing the light from the light source to create substantially uniform illumination of the target record carrier

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Artificial Intelligence (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne un dispositif d'éclairage pour un système optique d'un appareil de lecture, comprenant une source de lumière (3) disposée de manière concentrique autour d'un corps creux annulaire (2), un réflecteur de lumière externe (5) pour rediriger la lumière afin d'éclairer une zone au niveau de son extrémité distale (5b), et un élément réflecteur (8) doté d'une surface externe de finition de miroir (8a). La paroi interne (6) du réflecteur de lumière externe (5) est constituée d'un matériau réfléchissant, ayant une première partie (6a) dotée de sections transversales croissantes d'une extrémité proximale (5a) à une première région (6b) dotée d'une section transversale maximale, et une seconde partie (6c) dotée de sections transversales décroissantes de la première région (6b) à une seconde région (6d) dotée d'une section transversale minimale. L'élément réflecteur (8) est agencé devant la source de lumière (3) afin de rediriger la lumière vers la première partie (6a) du réflecteur de lumière externe (5). Le dispositif d'éclairage (1) obtient, dans un espace réduit, une efficacité optique élevée et un éclairage uniforme sur la marque à lire, évitant la réflexion spéculaire.
MA49243A 2017-06-06 2018-05-17 Dispositif d'éclairage pour un système optique d'un appareil de lecture MA49243B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17174510 2017-06-06
PCT/EP2018/062927 WO2018224283A1 (fr) 2017-06-06 2018-05-17 Dispositif d'éclairage pour un système optique d'un appareil de lecture

Publications (1)

Publication Number Publication Date
MA49243B1 true MA49243B1 (fr) 2021-07-29

Family

ID=59227440

Family Applications (1)

Application Number Title Priority Date Filing Date
MA49243A MA49243B1 (fr) 2017-06-06 2018-05-17 Dispositif d'éclairage pour un système optique d'un appareil de lecture

Country Status (14)

Country Link
US (1) US10922506B2 (fr)
EP (1) EP3635611B1 (fr)
CN (1) CN110678870B (fr)
BR (1) BR112019025588A2 (fr)
CA (1) CA3065123A1 (fr)
CL (1) CL2019003210A1 (fr)
DO (1) DOP2019000284A (fr)
EA (1) EA037108B1 (fr)
EC (1) ECSP20000407A (fr)
ES (1) ES2878349T3 (fr)
HU (1) HUE055404T2 (fr)
MA (1) MA49243B1 (fr)
PH (1) PH12019502753A1 (fr)
WO (1) WO2018224283A1 (fr)

Family Cites Families (26)

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DE69232291T2 (de) * 1991-10-29 2002-10-31 Denso Corp Informations-lesegerät
US5461417A (en) * 1993-02-16 1995-10-24 Northeast Robotics, Inc. Continuous diffuse illumination method and apparatus
JP3435200B2 (ja) * 1993-11-29 2003-08-11 ペンタックス株式会社 画像読取装置
US5585616A (en) * 1995-05-05 1996-12-17 Rockwell International Corporation Camera for capturing and decoding machine-readable matrix symbol images applied to reflective surfaces
US6275256B1 (en) * 1997-12-03 2001-08-14 Eastman Kodak Company Digital camera illuminator for the imaging of specular objects
US6598797B2 (en) * 1998-09-11 2003-07-29 Jason J. Lee Focus and illumination analysis algorithm for imaging device
US6352204B2 (en) 1999-08-04 2002-03-05 Industrial Data Entry Automation Systems Incorporated Optical symbol scanner with low angle illumination
JP3884707B2 (ja) * 2000-06-15 2007-02-21 スカンラブ アーゲー スキャンニング装置用の位置検出器
US6854650B2 (en) * 2002-04-10 2005-02-15 Microscan Systems, Inc. Mirrored surface optical symbol scanner
CN100378741C (zh) * 2002-11-21 2008-04-02 武汉矽感科技有限公司 线缆标识读取装置及方法
JP4258232B2 (ja) * 2003-03-03 2009-04-30 株式会社デンソーウェーブ 光学的情報読取装置
US7823783B2 (en) * 2003-10-24 2010-11-02 Cognex Technology And Investment Corporation Light pipe illumination system and method
US7823789B2 (en) * 2004-12-21 2010-11-02 Cognex Technology And Investment Corporation Low profile illumination for direct part mark readers
US9070031B2 (en) * 2003-10-24 2015-06-30 Cognex Technology And Investment Llc Integrated illumination assembly for symbology reader
US7874487B2 (en) * 2005-10-24 2011-01-25 Cognex Technology And Investment Corporation Integrated illumination assembly for symbology reader
US9536124B1 (en) * 2003-10-24 2017-01-03 Cognex Corporation Integrated illumination assembly for symbology reader
US7370802B2 (en) 2004-02-07 2008-05-13 Siemens Energy & Automation, Inc. Hand held scanner with rotating head
US7419098B2 (en) 2004-11-02 2008-09-02 The Code Corporation Graphical code reading apparatus for reading codes on reflective surfaces
US7617984B2 (en) 2004-12-16 2009-11-17 Cognex Technology And Investment Corporation Hand held symbology reader illumination diffuser
DE102005005536A1 (de) 2005-02-07 2006-08-10 Sick Ag Codeleser
US7357326B2 (en) 2005-11-30 2008-04-15 Industrial Data Entry Automation Systems Incorporated Fluorescent or luminescent optical symbol scanner
US7614563B1 (en) * 2005-12-29 2009-11-10 Cognex Technology And Investment Corporation System and method for providing diffuse illumination in a symbology reader
US8028913B2 (en) * 2007-09-28 2011-10-04 Symbol Technologies, Inc. Arrangement for and method of uniformly illuminating direct part markings to be imaged and electro-optically read
US8894260B2 (en) * 2009-03-31 2014-11-25 Sicpa Holding Sa Annular light guide illuminator and optical scanner
US8038066B2 (en) * 2009-04-29 2011-10-18 Hand Held Products, Inc. Laser scanner with deformable lens
CN102737213A (zh) * 2011-03-30 2012-10-17 凌通科技股份有限公司 光学辨识模块装置及具有光学辨识模块的光学读取器

Also Published As

Publication number Publication date
ES2878349T3 (es) 2021-11-18
BR112019025588A2 (pt) 2020-06-16
CN110678870B (zh) 2023-02-21
HUE055404T2 (hu) 2021-11-29
PH12019502753A1 (en) 2020-06-08
CL2019003210A1 (es) 2020-04-17
WO2018224283A1 (fr) 2018-12-13
US10922506B2 (en) 2021-02-16
EA201992622A1 (ru) 2020-03-26
EP3635611B1 (fr) 2021-04-21
CA3065123A1 (fr) 2018-12-13
DOP2019000284A (es) 2020-02-16
CN110678870A (zh) 2020-01-10
US20200364423A1 (en) 2020-11-19
ECSP20000407A (es) 2020-02-28
EA037108B1 (ru) 2021-02-08
EP3635611A1 (fr) 2020-04-15

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