EP2701464A3 - Apparatus and method for producing light of a predetermined spectrum with at least four light sources of different colours - Google Patents

Apparatus and method for producing light of a predetermined spectrum with at least four light sources of different colours Download PDF

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Publication number
EP2701464A3
EP2701464A3 EP13181122.6A EP13181122A EP2701464A3 EP 2701464 A3 EP2701464 A3 EP 2701464A3 EP 13181122 A EP13181122 A EP 13181122A EP 2701464 A3 EP2701464 A3 EP 2701464A3
Authority
EP
European Patent Office
Prior art keywords
light
light sources
unit
power distribution
spectral power
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.)
Granted
Application number
EP13181122.6A
Other languages
German (de)
French (fr)
Other versions
EP2701464A2 (en
EP2701464B1 (en
Inventor
Mario Cappitelli
Sönke KLOSTERMANN
Dietmar Dr. Vogt
Michael Dr. Olbert
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.)
Airbus Defence and Space GmbH
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Airbus Defence and Space GmbH
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Publication date
Application filed by Airbus Defence and Space GmbH filed Critical Airbus Defence and Space GmbH
Publication of EP2701464A2 publication Critical patent/EP2701464A2/en
Publication of EP2701464A3 publication Critical patent/EP2701464A3/en
Application granted granted Critical
Publication of EP2701464B1 publication Critical patent/EP2701464B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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]
    • H05B45/10—Controlling the intensity of the 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]
    • H05B45/20—Controlling the colour of the light
    • H05B45/24—Controlling the colour of the light using electrical feedback from LEDs or from LED modules
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters

Abstract

Die Erfindung betrifft eine Beleuchtungsvorrichtung (10) sowie ein Beleuchtungsverfahren mit einer Leuchteinheit (12), die mehrere Lichtquellen (14) unterschiedlicher Farbspektren umfasst, mit einem Sensor (16) zur Ermittlung der von der Leuchteinheit (12) emittierten spektralen Leistungsverteilung (SPD), einer Kontrolleinheit (18), die in Abhängigkeit einer vorgegebenen sowie der vom Sensor (16) gemessenen spektralen Leistungsverteilung eine Ansteuereinheit (24) beaufschlagt, weiche die Lichtquellen (14) der Leuchteinheit (12) individuell ansteuert, so dass das emittierte Licht die vorgegebene spektrale Leistungsverteilung aufweist, wobei die Leuchteinheit (12) mindestens vier Lichtquellen (14) umfasst und die Kontrolleinheit (18) zur Anwendung eines Optimierungsalgorithmus eingerichtet ist, der als Optimierungsziel einen Koeffizienten der gewichteten Sensorwerte maximiert, welcher aus den individuellen Ansteuerdaten der Lichtquellen berechenbar ist. Dabei ist Nebenbedingung, dass der Fehler zwischen der vorgegebenen und der genessenen spektralen Leistungsverteilung kleiner ist als ein Grenzwert.

Figure imgaf001
The invention relates to a lighting device (10) and to a lighting method comprising a light unit (12) comprising a plurality of light sources (14) of different color spectrums with a sensor (16) for determining the spectral power distribution (SPD) emitted by the light unit (12). a control unit (18) which, in dependence on a predetermined and measured by the sensor (16) spectral power distribution a drive unit (24) applied, the light sources (14) of the light unit (12) individually controls, so that the emitted light the predetermined spectral Power distribution, wherein the lighting unit (12) comprises at least four light sources (14) and the control unit (18) is adapted to use an optimization algorithm that maximizes a coefficient of the weighted sensor values as optimization target, which is calculated from the individual driving data of the light sources. In this case, the secondary condition is that the error between the given and the measured spectral power distribution is smaller than a limit value.
Figure imgaf001
EP13181122.6A 2012-08-22 2013-08-21 Apparatus and method for producing light of a predetermined spectrum with at least four light sources of different colours Active EP2701464B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012107706.1A DE102012107706A1 (en) 2012-08-22 2012-08-22 Apparatus and method for generating light of a given spectrum with at least four differently colored light sources

Publications (3)

Publication Number Publication Date
EP2701464A2 EP2701464A2 (en) 2014-02-26
EP2701464A3 true EP2701464A3 (en) 2015-07-08
EP2701464B1 EP2701464B1 (en) 2019-01-23

Family

ID=49035346

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Application Number Title Priority Date Filing Date
EP13181122.6A Active EP2701464B1 (en) 2012-08-22 2013-08-21 Apparatus and method for producing light of a predetermined spectrum with at least four light sources of different colours

Country Status (3)

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US (2) US9565723B2 (en)
EP (1) EP2701464B1 (en)
DE (1) DE102012107706A1 (en)

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US9565782B2 (en) 2013-02-15 2017-02-07 Ecosense Lighting Inc. Field replaceable power supply cartridge
WO2015038962A1 (en) * 2013-09-13 2015-03-19 Konica Minolta Laboratory U.S.A., Inc. Optimized power spectral distribution of light source
US10477636B1 (en) 2014-10-28 2019-11-12 Ecosense Lighting Inc. Lighting systems having multiple light sources
US9869450B2 (en) 2015-02-09 2018-01-16 Ecosense Lighting Inc. Lighting systems having a truncated parabolic- or hyperbolic-conical light reflector, or a total internal reflection lens; and having another light reflector
US11306897B2 (en) 2015-02-09 2022-04-19 Ecosense Lighting Inc. Lighting systems generating partially-collimated light emissions
US9651227B2 (en) 2015-03-03 2017-05-16 Ecosense Lighting Inc. Low-profile lighting system having pivotable lighting enclosure
US9651216B2 (en) 2015-03-03 2017-05-16 Ecosense Lighting Inc. Lighting systems including asymmetric lens modules for selectable light distribution
US9746159B1 (en) 2015-03-03 2017-08-29 Ecosense Lighting Inc. Lighting system having a sealing system
US9568665B2 (en) 2015-03-03 2017-02-14 Ecosense Lighting Inc. Lighting systems including lens modules for selectable light distribution
WO2016180235A1 (en) 2015-05-13 2016-11-17 Shenzhen University System and method for light optimization
USD785218S1 (en) 2015-07-06 2017-04-25 Ecosense Lighting Inc. LED luminaire having a mounting system
USD782094S1 (en) 2015-07-20 2017-03-21 Ecosense Lighting Inc. LED luminaire having a mounting system
USD782093S1 (en) 2015-07-20 2017-03-21 Ecosense Lighting Inc. LED luminaire having a mounting system
US9651232B1 (en) 2015-08-03 2017-05-16 Ecosense Lighting Inc. Lighting system having a mounting device
US10708991B2 (en) 2017-01-25 2020-07-07 Ledmotive Technologies, S.L. Controlling lighting devices
WO2018137867A1 (en) * 2017-01-26 2018-08-02 Philips Lighting Holding B.V. Rich black lighting device for differentiating shades of black.
CN113357569B (en) * 2021-06-02 2022-02-08 旭宇光电（深圳）股份有限公司 Multi-primary-color LED light-emitting system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080013314A1 (en) * 2006-07-13 2008-01-17 Tir Technology Lp Light source and method for optimising illumination characteristics thereof
DE102007044556A1 (en) * 2007-09-07 2009-03-12 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg Method and device for adjusting the color or photometric properties of an LED lighting device
DE102008050818A1 (en) * 2007-10-09 2009-04-16 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Lighting and color management system
WO2010122312A1 (en) * 2009-04-24 2010-10-28 Photonstar Led Limited High colour quality luminaire

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6552495B1 (en) 2001-12-19 2003-04-22 Koninklijke Philips Electronics N.V. Adaptive control system and method with spatial uniform color metric for RGB LED based white light illumination
US7333011B2 (en) * 2004-07-06 2008-02-19 Honeywell International Inc. LED-based luminaire utilizing optical feedback color and intensity control scheme

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080013314A1 (en) * 2006-07-13 2008-01-17 Tir Technology Lp Light source and method for optimising illumination characteristics thereof
DE102007044556A1 (en) * 2007-09-07 2009-03-12 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg Method and device for adjusting the color or photometric properties of an LED lighting device
DE102008050818A1 (en) * 2007-10-09 2009-04-16 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Lighting and color management system
WO2010122312A1 (en) * 2009-04-24 2010-10-28 Photonstar Led Limited High colour quality luminaire

Also Published As

Publication number Publication date
US9980327B2 (en) 2018-05-22
EP2701464A2 (en) 2014-02-26
EP2701464B1 (en) 2019-01-23
US20140055038A1 (en) 2014-02-27
DE102012107706A1 (en) 2014-02-27
US9565723B2 (en) 2017-02-07
US20170034890A1 (en) 2017-02-02

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