WO2007050454A3 - Integrated illumination assembly for symbology reader - Google Patents

Integrated illumination assembly for symbology reader Download PDF

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Publication number
WO2007050454A3
WO2007050454A3 PCT/US2006/041041 US2006041041W WO2007050454A3 WO 2007050454 A3 WO2007050454 A3 WO 2007050454A3 US 2006041041 W US2006041041 W US 2006041041W WO 2007050454 A3 WO2007050454 A3 WO 2007050454A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
light pipe
controller
illuminated
pipe
Prior art date
Application number
PCT/US2006/041041
Other languages
French (fr)
Other versions
WO2007050454A2 (en
WO2007050454A9 (en
Inventor
Laurens W Nunnink
William H Equitz
Original Assignee
Cognex Tech & Investment Corp
Laurens W Nunnink
William H Equitz
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37745812&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2007050454(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cognex Tech & Investment Corp, Laurens W Nunnink, William H Equitz filed Critical Cognex Tech & Investment Corp
Priority to DE112006002867T priority Critical patent/DE112006002867T5/en
Priority to JP2008537812A priority patent/JP5102215B2/en
Priority to CN2006800486668A priority patent/CN101346729B/en
Publication of WO2007050454A2 publication Critical patent/WO2007050454A2/en
Publication of WO2007050454A3 publication Critical patent/WO2007050454A3/en
Publication of WO2007050454A9 publication Critical patent/WO2007050454A9/en

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
    • G06K7/10732—Light sources

Abstract

This provides a plurality of novel features that can be applied variously to a reader. In one embodiment, the light pipe (244) is constructed from durable polycarbonate for increased shock resistance and can define a rectangular cross section. The chamfered end (230) of the light pipe is textured or frosted to further diffuse refracted light passing through the end so as to present a more even effect. The conical/tapered diff user (280) within the light pipe is illuminated by a reflector (230) with a white textured surface that reflects a plurality of rearward-directed illumination sources (282) back into the diff user. The reflector can define a predetermined cross section that directs further light into the forwardmost, remote regions of the diff user to generate a better spread of light and alleviate spotting effects. The textured surface on the chamfered light pipe end can be employed to better project indicator light. The illumination sources (310) are arranged in a ring at the inner end of the pipe, and can be multi-colored sources that respond to the controller to project and appropriate color and/or blink in an appropriate pattern to indicate various conditions, such as read success or failure. The controller is adapted to provide indications between image acquisitions. The controller can operate individual portions of the ring so that only corresponding portions of the light pipe perimeter are illuminated in a particular color (quadrants, for example) at a given time. Different quadrants may be simultaneously illuminated in different colors in one example.
PCT/US2006/041041 2005-10-24 2006-10-19 Integrated illumination assembly for symbology reader WO2007050454A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112006002867T DE112006002867T5 (en) 2005-10-24 2006-10-19 Integrated illumination arrangement for a symbol reader
JP2008537812A JP5102215B2 (en) 2005-10-24 2006-10-19 Built-in lighting assembly for symbolology reader
CN2006800486668A CN101346729B (en) 2005-10-24 2006-10-19 Integrated illumination assembly for symbology reader

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/257,411 US7874487B2 (en) 2005-10-24 2005-10-24 Integrated illumination assembly for symbology reader
US11/257,411 2005-10-24

Publications (3)

Publication Number Publication Date
WO2007050454A2 WO2007050454A2 (en) 2007-05-03
WO2007050454A3 true WO2007050454A3 (en) 2007-08-02
WO2007050454A9 WO2007050454A9 (en) 2008-05-29

Family

ID=37745812

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/041041 WO2007050454A2 (en) 2005-10-24 2006-10-19 Integrated illumination assembly for symbology reader

Country Status (6)

Country Link
US (2) US7874487B2 (en)
JP (1) JP5102215B2 (en)
CN (2) CN102419814B (en)
DE (3) DE112006002867T5 (en)
HK (1) HK1169504A1 (en)
WO (1) WO2007050454A2 (en)

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HK1169504A1 (en) 2013-01-25
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