WO2005060662A3 - Method and system for wavelength-dependent imaging and detection using a hybrid filter - Google Patents

Method and system for wavelength-dependent imaging and detection using a hybrid filter Download PDF

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Publication number
WO2005060662A3
WO2005060662A3 PCT/US2004/042279 US2004042279W WO2005060662A3 WO 2005060662 A3 WO2005060662 A3 WO 2005060662A3 US 2004042279 W US2004042279 W US 2004042279W WO 2005060662 A3 WO2005060662 A3 WO 2005060662A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
wavelengths
filter
interest
hybrid filter
Prior art date
Application number
PCT/US2004/042279
Other languages
French (fr)
Other versions
WO2005060662A2 (en
Inventor
Julie E Fouquet
Rene P Helbing
Original Assignee
Agilent Technologies 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 Agilent Technologies Inc filed Critical Agilent Technologies Inc
Priority to JP2006545435A priority Critical patent/JP4441738B2/en
Priority to CN2004800372297A priority patent/CN1914492B/en
Priority to EP04814458A priority patent/EP1695053A4/en
Publication of WO2005060662A2 publication Critical patent/WO2005060662A2/en
Publication of WO2005060662A3 publication Critical patent/WO2005060662A3/en
Priority to KR1020067012167A priority patent/KR101118343B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G01J3/427—Dual wavelengths spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J3/26—Generating the spectrum; Monochromators using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/2823—Imaging spectrometer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J2003/1213—Filters in general, e.g. dichroic, band
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/501—Colorimeters using spectrally-selective light sources, e.g. LEDs
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters

Abstract

An object (206) to be imaged or detected is illuminated by a single broadband light source or multiple light sources emitting light at different wavelengths. The light is detected by a detector (200), which includes a light-detecting sensor (400) covered by a hybrid filter. The hybrid filter includes a multi-band narrowband filter (516) mounted over a patterned filter layer (508). The light strikes the narrowband filter (516), which passes light at or near the multiple wavelengths of interest while blocking light at all other wavelengths. The patterned filter layer (508) alternately passes the light at one particular wavelength while blocking light at the other wavelengths of interest. This allows the sensor (400) to determine either simultaneously or alternately the intensity of the ligth at the wavelengths of interest. Filters (902) may also be mounted over the light at the light sources to narrow the spectra of the light sources.
PCT/US2004/042279 2003-12-18 2004-12-14 Method and system for wavelength-dependent imaging and detection using a hybrid filter WO2005060662A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2006545435A JP4441738B2 (en) 2003-12-18 2004-12-14 Method and system for wavelength dependent imaging and detection using hybrid filters
CN2004800372297A CN1914492B (en) 2003-12-18 2004-12-14 Method and system for wavelength-dependent imaging and detection using a hybrid filter
EP04814458A EP1695053A4 (en) 2003-12-18 2004-12-14 Method and system for wavelength-dependent imaging and detection using a hybrid filter
KR1020067012167A KR101118343B1 (en) 2003-12-18 2006-06-19 Method and system for wavelength-dependent imaging and detection using a hybrid filter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/739,831 US7217913B2 (en) 2003-12-18 2003-12-18 Method and system for wavelength-dependent imaging and detection using a hybrid filter
US10/739,831 2003-12-18

Publications (2)

Publication Number Publication Date
WO2005060662A2 WO2005060662A2 (en) 2005-07-07
WO2005060662A3 true WO2005060662A3 (en) 2006-03-30

Family

ID=34677727

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/042279 WO2005060662A2 (en) 2003-12-18 2004-12-14 Method and system for wavelength-dependent imaging and detection using a hybrid filter

Country Status (7)

Country Link
US (4) US7217913B2 (en)
EP (1) EP1695053A4 (en)
JP (1) JP4441738B2 (en)
KR (1) KR101118343B1 (en)
CN (1) CN1914492B (en)
TW (1) TWI261121B (en)
WO (1) WO2005060662A2 (en)

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Also Published As

Publication number Publication date
US20060028656A1 (en) 2006-02-09
US20080251699A1 (en) 2008-10-16
US7217913B2 (en) 2007-05-15
TW200521480A (en) 2005-07-01
US7450250B2 (en) 2008-11-11
US7655899B2 (en) 2010-02-02
CN1914492A (en) 2007-02-14
US20070170352A1 (en) 2007-07-26
EP1695053A4 (en) 2007-08-22
EP1695053A2 (en) 2006-08-30
WO2005060662A2 (en) 2005-07-07
JP4441738B2 (en) 2010-03-31
TWI261121B (en) 2006-09-01
JP2007515132A (en) 2007-06-07
KR20060123353A (en) 2006-12-01
KR101118343B1 (en) 2012-03-09
US20050133693A1 (en) 2005-06-23
CN1914492B (en) 2012-04-25
US7391008B2 (en) 2008-06-24

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