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WO2007091200A1 - Contrôle d'un dispositif d'éclairage - Google Patents

Contrôle d'un dispositif d'éclairage Download PDF

Info

Publication number
WO2007091200A1
WO2007091200A1 PCT/IB2007/050356 IB2007050356W WO2007091200A1 WO 2007091200 A1 WO2007091200 A1 WO 2007091200A1 IB 2007050356 W IB2007050356 W IB 2007050356W WO 2007091200 A1 WO2007091200 A1 WO 2007091200A1
Authority
WO
WIPO (PCT)
Prior art keywords
illumination device
light
light emitters
sensor units
measurement signals
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.)
Ceased
Application number
PCT/IB2007/050356
Other languages
English (en)
Inventor
Volkmar Schulz
Christoph Martiny
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Intellectual Property and Standards GmbH
Koninklijke Philips Electronics NV
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 Philips Intellectual Property and Standards GmbH, Koninklijke Philips Electronics NV filed Critical Philips Intellectual Property and Standards GmbH
Publication of WO2007091200A1 publication Critical patent/WO2007091200A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/4228—Photometry, e.g. photographic exposure meter using electric radiation detectors arrangements with two or more detectors, e.g. for sensitivity compensation
    • 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
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/041—Controlling the light-intensity of the source
    • H05B39/042—Controlling the light-intensity of the source by measuring the incident light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3922—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations and measurement of the incident light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/22—Controlling the colour of the light using optical feedback
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J2001/4247—Photometry, e.g. photographic exposure meter using electric radiation detectors for testing lamps or other light sources
    • G01J2001/4252—Photometry, e.g. photographic exposure meter using electric radiation detectors for testing lamps or other light sources for testing LED's

Definitions

  • the characteristic value can be calculated by a simple and fast matrix multiplication of the vector of measurement signals with the inverted coupling matrix, wherein the coefficients of said matrix are typically calculated and stored in advance.
  • the group of red LEDs Ll and the group of green LEDs L2 may each be considered as one single light emitter, and the measurements of the four sensor units Dl, D2, D3 and D4 may be used to determine the individual light fluxes coming from these groups and from the single LED L3, respectively, when all LEDs are active.
  • the measurements of the four sensor units Dl, D2, D3 and D4 may be used to determine the individual light fluxes coming from the four LEDs Ll of the active group.

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

La présente invention concerne un dispositif d'éclairage (1) qui comprend un certain nombre de sources lumineuses, par exemple de diodes électroluminescentes (LED) (L1, L2, L3, L4) présentant une puissance lumineuse de sortie individuelle. Des unités de détection (D1, D2, D3, D4) produisent un vecteur de signaux de mesure (S1, S2, S3, S4) qui représentent la puissance lumineuse de sortie commune des sources lumineuses. Sur la base d'une relation linéaire obtenue au cours d'une procédure d'étalonnage, une valeur caractéristique de la puissance lumineuse de sortie individuelle des sources lumineuses (L1, L2, L3, L4) est ensuite calculée à partir du vecteur de mesure. Cette valeur caractéristique peut notamment comprendre le flux lumineux produit par les sources lumineuses individuelles (L1, L2, L3, L4).
PCT/IB2007/050356 2006-02-10 2007-02-02 Contrôle d'un dispositif d'éclairage Ceased WO2007091200A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06101516.0 2006-02-10
EP06101516 2006-02-10

Publications (1)

Publication Number Publication Date
WO2007091200A1 true WO2007091200A1 (fr) 2007-08-16

Family

ID=38123688

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/050356 Ceased WO2007091200A1 (fr) 2006-02-10 2007-02-02 Contrôle d'un dispositif d'éclairage

Country Status (2)

Country Link
TW (1) TW200803619A (fr)
WO (1) WO2007091200A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024223627A1 (fr) 2023-04-25 2024-10-31 Trinamix Gmbh Fonctionnement à deux del avec pilote unique

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1260959A2 (fr) * 2001-05-15 2002-11-27 Eastman Kodak Company Panneau d'affichage à matrice active de diodes électroluminescentes organiques
WO2003058184A1 (fr) * 2002-01-11 2003-07-17 Koninklijke Philips Electronics N.V. Procede de determination de composantes trichromatiques pour des sources lumineuses del rvb
WO2004051205A2 (fr) * 2002-12-02 2004-06-17 Johann Wolfgang Goethe-Universität Frankfurt am Main Spectrometre, notamment spectrometre de reflexion
WO2004097783A1 (fr) * 2003-04-25 2004-11-11 Visioneered Image Systems, Inc. Affichage/source d'eclairage a del ayant la capacite de surveiller la luminosite des del individuelles, et procede de calibrage
US20050088380A1 (en) * 2003-10-23 2005-04-28 Vladimir Bulovic LED array with photodetector
US20050151059A1 (en) * 2004-01-13 2005-07-14 Seiko Epson Corporation Electro-optical device, method for driving the same, and electronic apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1260959A2 (fr) * 2001-05-15 2002-11-27 Eastman Kodak Company Panneau d'affichage à matrice active de diodes électroluminescentes organiques
WO2003058184A1 (fr) * 2002-01-11 2003-07-17 Koninklijke Philips Electronics N.V. Procede de determination de composantes trichromatiques pour des sources lumineuses del rvb
WO2004051205A2 (fr) * 2002-12-02 2004-06-17 Johann Wolfgang Goethe-Universität Frankfurt am Main Spectrometre, notamment spectrometre de reflexion
WO2004097783A1 (fr) * 2003-04-25 2004-11-11 Visioneered Image Systems, Inc. Affichage/source d'eclairage a del ayant la capacite de surveiller la luminosite des del individuelles, et procede de calibrage
US20050088380A1 (en) * 2003-10-23 2005-04-28 Vladimir Bulovic LED array with photodetector
US20050151059A1 (en) * 2004-01-13 2005-07-14 Seiko Epson Corporation Electro-optical device, method for driving the same, and electronic apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024223627A1 (fr) 2023-04-25 2024-10-31 Trinamix Gmbh Fonctionnement à deux del avec pilote unique

Also Published As

Publication number Publication date
TW200803619A (en) 2008-01-01

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