GB2225659B - Optical code reader - Google Patents

Optical code reader

Info

Publication number
GB2225659B
GB2225659B GB8926084A GB8926084A GB2225659B GB 2225659 B GB2225659 B GB 2225659B GB 8926084 A GB8926084 A GB 8926084A GB 8926084 A GB8926084 A GB 8926084A GB 2225659 B GB2225659 B GB 2225659B
Authority
GB
United Kingdom
Prior art keywords
code reader
optical code
optical
reader
code
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.)
Expired - Fee Related
Application number
GB8926084A
Other versions
GB8926084D0 (en
GB2225659A (en
Inventor
Katsuhisa Niwa
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.)
West Electric Co Ltd
Original Assignee
West Electric Co Ltd
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 West Electric Co Ltd filed Critical West Electric Co Ltd
Publication of GB8926084D0 publication Critical patent/GB8926084D0/en
Publication of GB2225659A publication Critical patent/GB2225659A/en
Application granted granted Critical
Publication of GB2225659B publication Critical patent/GB2225659B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G06K7/10712—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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
    • 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
    • G06K7/10554—Moving beam scanning
    • G06K7/10564—Light sources
    • 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
    • G06K7/10554—Moving beam scanning
    • G06K7/10594—Beam path
    • G06K7/10683—Arrangement of fixed elements
    • G06K7/10702—Particularities of propagating elements, e.g. lenses, mirrors
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Artificial Intelligence (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Image Input (AREA)
GB8926084A 1988-11-18 1989-11-17 Optical code reader Expired - Fee Related GB2225659B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63292787A JP2690125B2 (en) 1988-11-18 1988-11-18 Optical reader

Publications (3)

Publication Number Publication Date
GB8926084D0 GB8926084D0 (en) 1990-01-10
GB2225659A GB2225659A (en) 1990-06-06
GB2225659B true GB2225659B (en) 1992-12-09

Family

ID=17786333

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898925805A Pending GB8925805D0 (en) 1988-11-18 1989-11-15 Optical code reader
GB8926084A Expired - Fee Related GB2225659B (en) 1988-11-18 1989-11-17 Optical code reader

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898925805A Pending GB8925805D0 (en) 1988-11-18 1989-11-15 Optical code reader

Country Status (2)

Country Link
JP (1) JP2690125B2 (en)
GB (2) GB8925805D0 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5621203A (en) * 1992-09-25 1997-04-15 Symbol Technologies Method and apparatus for reading two-dimensional bar code symbols with an elongated laser line
JP2771309B2 (en) * 1990-04-17 1998-07-02 アルプス電気株式会社 Optical reader
FR2673738A1 (en) * 1991-03-05 1992-09-11 Digital Vision Opto-electronic device for capturing linear images, especially bar-codes
CA2169865C (en) * 1996-02-20 2007-07-03 Vitold A. Khvostov Optical reflection sensing arrangement for scanning devices
DE19828433A1 (en) * 1998-06-25 1999-12-30 Sick Ag Optoelectronic sensor arrangement
DE10009493A1 (en) * 2000-02-29 2001-08-30 Sick Ag scanner
JP2004170858A (en) * 2002-11-22 2004-06-17 Canon Inc Image reading apparatus
US6866405B2 (en) * 2003-02-06 2005-03-15 Hewlett-Packard Development Company, L.P. Variable intensity illuminator lens
GB2421584A (en) * 2004-12-21 2006-06-28 Sharp Kk Optical device with converging and diverging elements for directing light
DE602005009386D1 (en) 2005-12-30 2008-10-09 Datalogic Spa Optical code reader
ATE536593T1 (en) 2005-12-30 2011-12-15 Datalogic Scanning Group Srl ILLUMINATION LENS FOR AN OPTICAL CODE READER
JP4915321B2 (en) * 2007-09-25 2012-04-11 株式会社デンソーウェーブ Optical information reader
US7967210B2 (en) 2007-11-30 2011-06-28 Symbol Technologies, Inc. Imaging bar code reader having light emitting diode for generating a field of view
JP5968963B2 (en) * 2014-08-28 2016-08-10 Idec株式会社 Optical information reader

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1246555A (en) * 1968-08-21 1971-09-15 Morat Gmbh Franz Film scanning system
GB1365646A (en) * 1971-07-20 1974-09-04 Sick Erwin Apparatus for line by line photoelectric scanning of data media
GB1388134A (en) * 1971-03-22 1975-03-26 Zellweger Uster Ag Scanner apparatus for optically discernible characters
EP0197673A2 (en) * 1985-03-28 1986-10-15 Polaroid Corporation Optical scanner
EP0256296A2 (en) * 1986-07-11 1988-02-24 PSC Inc. Apparatus for scanning and reading bar codes
EP0276589A2 (en) * 1987-01-28 1988-08-03 Symbol Technologies, Inc. Bar code symbol readers with variable spot size and/or working distance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54120330U (en) * 1978-02-13 1979-08-23
JPS54173640U (en) * 1978-05-26 1979-12-07
JPS5935276A (en) * 1982-08-20 1984-02-25 Nippon Denso Co Ltd Optical information reader
JPH02129779A (en) * 1988-11-10 1990-05-17 Matsushita Electric Ind Co Ltd Bar code reader

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1246555A (en) * 1968-08-21 1971-09-15 Morat Gmbh Franz Film scanning system
GB1388134A (en) * 1971-03-22 1975-03-26 Zellweger Uster Ag Scanner apparatus for optically discernible characters
GB1365646A (en) * 1971-07-20 1974-09-04 Sick Erwin Apparatus for line by line photoelectric scanning of data media
EP0197673A2 (en) * 1985-03-28 1986-10-15 Polaroid Corporation Optical scanner
EP0256296A2 (en) * 1986-07-11 1988-02-24 PSC Inc. Apparatus for scanning and reading bar codes
EP0276589A2 (en) * 1987-01-28 1988-08-03 Symbol Technologies, Inc. Bar code symbol readers with variable spot size and/or working distance

Also Published As

Publication number Publication date
GB8926084D0 (en) 1990-01-10
GB2225659A (en) 1990-06-06
GB8925805D0 (en) 1990-01-04
JPH02138681A (en) 1990-05-28
JP2690125B2 (en) 1997-12-10

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19950928

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20071117