DE69132773T2 - Gerät mit erweiterter Schärfentiefe zum elektro-optischen Lesen von Zeichen - Google Patents

Gerät mit erweiterter Schärfentiefe zum elektro-optischen Lesen von Zeichen

Info

Publication number
DE69132773T2
DE69132773T2 DE69132773T DE69132773T DE69132773T2 DE 69132773 T2 DE69132773 T2 DE 69132773T2 DE 69132773 T DE69132773 T DE 69132773T DE 69132773 T DE69132773 T DE 69132773T DE 69132773 T2 DE69132773 T2 DE 69132773T2
Authority
DE
Germany
Prior art keywords
field
focal length
multifocal
optical system
view
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 - Lifetime
Application number
DE69132773T
Other languages
English (en)
Other versions
DE69132773D1 (de
Inventor
Boris Metlitsky
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.)
Symbol Technologies LLC
Original Assignee
Symbol Technologies LLC
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 Symbol Technologies LLC filed Critical Symbol Technologies LLC
Publication of DE69132773D1 publication Critical patent/DE69132773D1/de
Application granted granted Critical
Publication of DE69132773T2 publication Critical patent/DE69132773T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • G06K7/10574—Multiple 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
DE69132773T 1991-06-14 1991-12-30 Gerät mit erweiterter Schärfentiefe zum elektro-optischen Lesen von Zeichen Expired - Lifetime DE69132773T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/717,771 US5210398A (en) 1991-06-14 1991-06-14 Optical scanner with extended depth of focus

Publications (2)

Publication Number Publication Date
DE69132773D1 DE69132773D1 (de) 2001-11-22
DE69132773T2 true DE69132773T2 (de) 2002-07-11

Family

ID=24883420

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69132773T Expired - Lifetime DE69132773T2 (de) 1991-06-14 1991-12-30 Gerät mit erweiterter Schärfentiefe zum elektro-optischen Lesen von Zeichen

Country Status (8)

Country Link
US (1) US5210398A (de)
EP (1) EP0517956B1 (de)
JP (1) JP3056590B2 (de)
KR (1) KR100277272B1 (de)
AT (1) ATE207221T1 (de)
CA (1) CA2058066C (de)
DE (1) DE69132773T2 (de)
ES (1) ES2161683T3 (de)

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Also Published As

Publication number Publication date
ATE207221T1 (de) 2001-11-15
KR930000982A (ko) 1993-01-16
EP0517956B1 (de) 2001-10-17
KR100277272B1 (ko) 2001-01-15
CA2058066A1 (en) 1992-12-15
EP0517956A1 (de) 1992-12-16
DE69132773D1 (de) 2001-11-22
US5210398A (en) 1993-05-11
ES2161683T3 (es) 2001-12-16
JPH05217012A (ja) 1993-08-27
JP3056590B2 (ja) 2000-06-26
CA2058066C (en) 2002-05-21

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