CA1110477A - Dispositif de lecture optique a reflexion a securite amelioree - Google Patents

Dispositif de lecture optique a reflexion a securite amelioree

Info

Publication number
CA1110477A
CA1110477A CA292,489A CA292489A CA1110477A CA 1110477 A CA1110477 A CA 1110477A CA 292489 A CA292489 A CA 292489A CA 1110477 A CA1110477 A CA 1110477A
Authority
CA
Canada
Prior art keywords
optical scanning
set forth
scanning apparatus
optical
axis
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
Application number
CA292,489A
Other languages
English (en)
Inventor
Paul S. Wu
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.)
Sweda International Inc
Original Assignee
Sweda International 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 Sweda International Inc filed Critical Sweda International Inc
Application granted granted Critical
Publication of CA1110477A publication Critical patent/CA1110477A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K7/10821—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 further details of bar or optical code scanning devices
    • G06K7/10861—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 further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels
    • G06K7/10871—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 further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels randomly oriented data-fields, code-marks therefore, e.g. concentric circles-code
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/129—Systems in which the scanning light beam is repeatedly reflected from the polygonal mirror

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Optical Scanning Systems (AREA)
CA292,489A 1976-12-06 1977-12-06 Dispositif de lecture optique a reflexion a securite amelioree Expired CA1110477A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74801376A 1976-12-06 1976-12-06
US748,013 1976-12-06

Publications (1)

Publication Number Publication Date
CA1110477A true CA1110477A (fr) 1981-10-13

Family

ID=25007615

Family Applications (1)

Application Number Title Priority Date Filing Date
CA292,489A Expired CA1110477A (fr) 1976-12-06 1977-12-06 Dispositif de lecture optique a reflexion a securite amelioree

Country Status (2)

Country Link
CA (1) CA1110477A (fr)
GB (1) GB1597370A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2255650A (en) * 1991-05-08 1992-11-11 Spectra Physics Scanning Syst Laser bar code scanner producing parallel scan lines
US6788445B2 (en) * 2002-01-14 2004-09-07 Applied Materials, Inc. Multi-beam polygon scanning system

Also Published As

Publication number Publication date
GB1597370A (en) 1981-09-09

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Legal Events

Date Code Title Description
MKEX Expiry