EP2218033A4 - OPTICAL CODE READER WITH AUTOMATIC FOCUS - Google Patents

OPTICAL CODE READER WITH AUTOMATIC FOCUS

Info

Publication number
EP2218033A4
EP2218033A4 EP07844971A EP07844971A EP2218033A4 EP 2218033 A4 EP2218033 A4 EP 2218033A4 EP 07844971 A EP07844971 A EP 07844971A EP 07844971 A EP07844971 A EP 07844971A EP 2218033 A4 EP2218033 A4 EP 2218033A4
Authority
EP
European Patent Office
Prior art keywords
code scanner
automatic focusing
optical code
optical
focusing
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.)
Withdrawn
Application number
EP07844971A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2218033A1 (en
Inventor
Yasutake Kawashima
Tohru Takahashi
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.)
Optoelectronics Co Ltd
Opticon Inc
Original Assignee
Optoelectronics Co Ltd
Opticon Inc
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 Optoelectronics Co Ltd, Opticon Inc filed Critical Optoelectronics Co Ltd
Publication of EP2218033A1 publication Critical patent/EP2218033A1/en
Publication of EP2218033A4 publication Critical patent/EP2218033A4/en
Withdrawn legal-status Critical Current

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
    • G06K7/10792—Special measures in relation to the object to be scanned
    • G06K7/10801—Multidistance reading
    • G06K7/10811—Focalisation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G02B3/14—Fluid-filled or evacuated lenses of variable focal length
    • 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
    • G06K7/10732—Light sources
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2207/00—Other aspects
    • G06K2207/1013—Multi-focal

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
EP07844971A 2007-11-08 2007-11-08 OPTICAL CODE READER WITH AUTOMATIC FOCUS Withdrawn EP2218033A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2007/084043 WO2009061317A1 (en) 2007-11-08 2007-11-08 Optical code scanner with automatic focusing

Publications (2)

Publication Number Publication Date
EP2218033A1 EP2218033A1 (en) 2010-08-18
EP2218033A4 true EP2218033A4 (en) 2010-12-29

Family

ID=40626033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07844971A Withdrawn EP2218033A4 (en) 2007-11-08 2007-11-08 OPTICAL CODE READER WITH AUTOMATIC FOCUS

Country Status (4)

Country Link
EP (1) EP2218033A4 (ja)
JP (1) JP2011504247A (ja)
CN (1) CN101855639A (ja)
WO (1) WO2009061317A1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8348168B2 (en) * 2010-05-17 2013-01-08 Symbol Technologies, Inc. Focus adjustment with liquid crystal device in imaging scanner
JP5605627B2 (ja) * 2010-09-22 2014-10-15 カシオ計算機株式会社 パターンまたは画像読み取り装置、その制御方法およびプログラム
JP2013025507A (ja) * 2011-07-19 2013-02-04 Nippon Telegr & Teleph Corp <Ntt> 印刷情報読取装置
US8576390B1 (en) * 2012-07-31 2013-11-05 Cognex Corporation System and method for determining and controlling focal distance in a vision system camera
US8873892B2 (en) * 2012-08-21 2014-10-28 Cognex Corporation Trainable handheld optical character recognition systems and methods
TWI505198B (zh) * 2012-09-11 2015-10-21 Sintai Optical Shenzhen Co Ltd Bar code reading method and reading device
US10491790B2 (en) * 2016-03-22 2019-11-26 Symbol Technologies, Llc Imaging module and reader for, and method of, variably illuminating targets to be read by image capture over a range of working distances
JP6327294B2 (ja) * 2016-06-22 2018-05-23 カシオ計算機株式会社 光照射装置およびプログラム
CH712734A1 (de) * 2016-07-22 2018-01-31 Tecan Trading Ag Erkennungsvorrichtung und -verfahren zum Erkennen von Kennzeichen an und/oder Merkmalen von Laborobjekten.
DE102020109928B3 (de) 2020-04-09 2020-12-31 Sick Ag Kamera und Verfahren zur Erfassung von Bilddaten

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5864128A (en) * 1991-10-15 1999-01-26 Geo Labs, Inc. Lens with variable focal length
US20050218231A1 (en) * 2004-01-23 2005-10-06 Intermec Ip Corp. Autofocus barcode scanner and the like employing micro-fluidic lens
US20070063048A1 (en) * 2005-09-14 2007-03-22 Havens William H Data reader apparatus having an adaptive lens
US20070153644A1 (en) * 2005-12-30 2007-07-05 Datalogic S.P.A. Device and method for focusing a laser light beam
EP1921565A1 (de) * 2006-11-11 2008-05-14 Leuze electronic GmbH + Co. KG Barcodelesegerät
WO2009038959A1 (en) * 2007-09-17 2009-03-26 Metrologic Instruments, Inc. Autofocus liquid lens scanner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0533207A3 (en) * 1991-09-20 1993-08-04 Omron Corporation Multi-focus optical device
US6176429B1 (en) * 1998-07-17 2001-01-23 Psc Scanning, Inc. Optical reader with selectable processing characteristics for reading data in multiple formats
US7137555B2 (en) * 2000-02-28 2006-11-21 Psc Scanning, Inc. Multi-format bar code reader
JP2006201639A (ja) * 2005-01-24 2006-08-03 Citizen Electronics Co Ltd カメラ用ズームユニット及びカメラ
WO2007033326A2 (en) * 2005-09-14 2007-03-22 Welch Allyn, Inc. Medical apparatus comprising and adaptive lens
CN101001304A (zh) * 2006-01-09 2007-07-18 明基电通信息技术有限公司 图像提取装置及其聚焦方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5864128A (en) * 1991-10-15 1999-01-26 Geo Labs, Inc. Lens with variable focal length
US20050218231A1 (en) * 2004-01-23 2005-10-06 Intermec Ip Corp. Autofocus barcode scanner and the like employing micro-fluidic lens
US20070063048A1 (en) * 2005-09-14 2007-03-22 Havens William H Data reader apparatus having an adaptive lens
US20070153644A1 (en) * 2005-12-30 2007-07-05 Datalogic S.P.A. Device and method for focusing a laser light beam
EP1921565A1 (de) * 2006-11-11 2008-05-14 Leuze electronic GmbH + Co. KG Barcodelesegerät
WO2009038959A1 (en) * 2007-09-17 2009-03-26 Metrologic Instruments, Inc. Autofocus liquid lens scanner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2009061317A1 *

Also Published As

Publication number Publication date
CN101855639A (zh) 2010-10-06
JP2011504247A (ja) 2011-02-03
EP2218033A1 (en) 2010-08-18
WO2009061317A1 (en) 2009-05-14

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 20100607

AK Designated contracting states

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Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

A4 Supplementary search report drawn up and despatched

Effective date: 20101126

RIC1 Information provided on ipc code assigned before grant

Ipc: G02B 26/02 20060101ALI20101122BHEP

Ipc: G02B 3/14 20060101ALI20101122BHEP

Ipc: G06K 7/10 20060101AFI20090602BHEP

DAX Request for extension of the european patent (deleted)
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Effective date: 20110715

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 20120126