WO2006081535A3 - Rolling-reset imager with optical filter - Google Patents

Rolling-reset imager with optical filter Download PDF

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Publication number
WO2006081535A3
WO2006081535A3 PCT/US2006/003158 US2006003158W WO2006081535A3 WO 2006081535 A3 WO2006081535 A3 WO 2006081535A3 US 2006003158 W US2006003158 W US 2006003158W WO 2006081535 A3 WO2006081535 A3 WO 2006081535A3
Authority
WO
WIPO (PCT)
Prior art keywords
rolling
optical filter
illumination
reset imager
light
Prior art date
Application number
PCT/US2006/003158
Other languages
French (fr)
Other versions
WO2006081535A2 (en
Inventor
Bryan L Olmstead
Alan Shearin
Original Assignee
Datalogic Scanning 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 Datalogic Scanning Inc filed Critical Datalogic Scanning Inc
Priority to EP06719838A priority Critical patent/EP1847116A4/en
Priority to CN200680005790.6A priority patent/CN101151890B/en
Publication of WO2006081535A2 publication Critical patent/WO2006081535A2/en
Publication of WO2006081535A3 publication Critical patent/WO2006081535A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/75—Circuitry for compensating brightness variation in the scene by influencing optical camera components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means

Abstract

An imaging system (100,200) comprises a rolling-reset imager (110) that forms an electronic image of an object (160), a light source (130) illuminating the object (160) with pulsed light, and a bandpass optical filter (170) disposed between the object (160) and the rolling-reset imager (110). The pulsed light has an illumination frequency spectrum and an illumination pulse width defining an effective exposure time for forming the image of the object. The bandpass optical filter (170) has a frequency pass band permitting transmission of a significant portion of the illumination frequency spectrum while at least approximately inhibiting transmission of at least some light having frequencies outside the illumination frequency band.
PCT/US2006/003158 2005-01-27 2006-01-27 Rolling-reset imager with optical filter WO2006081535A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06719838A EP1847116A4 (en) 2005-01-27 2006-01-27 Rolling-reset imager with optical filter
CN200680005790.6A CN101151890B (en) 2005-01-27 2006-01-27 Rolling-reset imager with optical filter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/045,214 US7499090B2 (en) 2005-01-27 2005-01-27 Rolling-reset imager with optical filter
US11/045,214 2005-01-27

Publications (2)

Publication Number Publication Date
WO2006081535A2 WO2006081535A2 (en) 2006-08-03
WO2006081535A3 true WO2006081535A3 (en) 2007-12-21

Family

ID=36696362

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/003158 WO2006081535A2 (en) 2005-01-27 2006-01-27 Rolling-reset imager with optical filter

Country Status (4)

Country Link
US (2) US7499090B2 (en)
EP (1) EP1847116A4 (en)
CN (1) CN101151890B (en)
WO (1) WO2006081535A2 (en)

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US8408464B2 (en) 2011-02-03 2013-04-02 Metrologic Instruments, Inc. Auto-exposure method using continuous video frames under controlled illumination
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Also Published As

Publication number Publication date
US20060164541A1 (en) 2006-07-27
US7499090B2 (en) 2009-03-03
CN101151890A (en) 2008-03-26
EP1847116A4 (en) 2010-12-01
WO2006081535A2 (en) 2006-08-03
EP1847116A2 (en) 2007-10-24
CN101151890B (en) 2011-06-15
US20090153718A1 (en) 2009-06-18
US8134621B2 (en) 2012-03-13

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