EP3503687B1 - Beleuchtungsvorrichtung und zugehöriges verfahren zur chromatischen kompensation - Google Patents
Beleuchtungsvorrichtung und zugehöriges verfahren zur chromatischen kompensation Download PDFInfo
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- EP3503687B1 EP3503687B1 EP18211986.7A EP18211986A EP3503687B1 EP 3503687 B1 EP3503687 B1 EP 3503687B1 EP 18211986 A EP18211986 A EP 18211986A EP 3503687 B1 EP3503687 B1 EP 3503687B1
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- light radiation
- light
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- 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
Claims (8)
- Beleuchtungsvorrichtung (10), umfassend:- eine erste Lichtstrahlungsquelle (141), die weiße Lichtstrahlung mit einer ersten Farbtemperatur aussendet,- eine zweite Lichtstrahlungsquelle (142), die weiße Lichtstrahlung mit einer zweiten Farbtemperatur, die sich von der ersten Farbtemperatur der ersten Lichtstrahlungsquelle (141) unterscheidet, aussendet und- eine dritte Lichtstrahlungsquelle (143), die nicht-weiße Lichtstrahlung von grüner Farbe aussendet,- die erste (141), zweite (142) und dritte (143) Lichtstrahlungsquelle, die auf einem Trägerelement (12) angeordnet ist, wobei von der Beleuchtungsvorrichtung (10) emittierte Lichtstrahlung gemischte Lichtstrahlung von der ersten (141), zweiten (142) und dritten (143) Lichtstrahlungsquelle mit einer Farbtemperatur zwischen der ersten Farbtemperatur der ersten Lichtstrahlungsquelle (141) und der zweiten Farbtemperatur der zweiten Lichtstrahlungsquelle (142) ist,wobei:- die Lichtstrahlungsquellen (141, 142, 143) elektrisch betriebene Lichtstrahlungsquellen umfassen, wobei der emittierte Lichtfluss selektiv als eine Funktion der daran angelegten Spannung und/oder des daran angelegten Stroms variabel ist,- die Vorrichtung eine Treiberschaltung (14) umfasst, die mit den Lichtstrahlungsquellen (141, 142, 143) gekoppelt ist, um den Lichtfluss der Lichtstrahlungsquellen (141, 142, 143) selektiv zu variieren, durch Variieren der daran angelegten Spannung und/oder des daran angelegten Stroms; dadurch gekennzeichnet, dass die Treiberschaltung (14) konfiguriert ist zum:- Versorgen der Lichtstrahlungsquellen (141, 142, 143) mit pulsbreitenmodulierten Signalen die ein variables Tastverhältnis aufweisen, und- Durchführen von Dimmen von Lichtstrahlung von den Lichtstrahlungsquellen (141, 142, 143) durch Reduzieren des Tastverhältnisses der pulsbreitenmodulierten Signale von einem oberen auf einen unteren Wert, indem das Tastverhältnis der Versorgungssignale für die erste (141) und dritte (143) Strahlungsquelle kleiner gehalten wird als das Tastverhältnis des Versorgungssignals für die zweite (142) Lichtstrahlungsquelle.
- Beleuchtungsvorrichtung (10) nach Anspruch 1, umfassend eine Vielzahl von Gruppen von Lichtstrahlungsquellen, wobei jede Gruppe in der Vielzahl von Gruppen mindestens eine der ersten Lichtstrahlungsquelle (141), mindestens eine der zweiten Lichtstrahlungsquelle (142) und mindestens eine der dritten Lichtstrahlungsquelle (143) umfasst.
- Beleuchtungsvorrichtung (10) nach Anspruch 1 oder Anspruch 2, umfassend:- eine Vielzahl der ersten Lichtstrahlungsquellen (141),- eine Vielzahl der zweiten Lichtstrahlungsquellen (142), und- eine Vielzahl der dritten Lichtstrahlungsquellen (143).
- Beleuchtungsvorrichtung (10) nach Anspruch 3, wobei die Vielzahlen von Lichtstrahlungsquellen (141, 142, 143) umfassen:- eine gleiche Anzahl von ersten Lichtstrahlungsquellen (141), zweiten Lichtstrahlungsquellen (142) und dritten Lichtstrahlungsquellen (143), und/oder- Stränge von elektrisch betriebenen Lichtstrahlungsquellen (141, 142, 143), die Lichtstrahlungsquellen (141, 142, 143) umfassen, die elektrisch in Reihe angeordnet sind.
- Beleuchtungsvorrichtung (10) nach einem der vorhergehenden Ansprüche, wobei die zweite Farbtemperatur niedriger ist als die erste Farbtemperatur.
- Beleuchtungsvorrichtung (10) nach einem der vorhergehenden Ansprüche, wobei die Lichtstrahlungsquellen (141, 142, 143) Festkörper-, vorzugsweise LED-Lichtstrahlungsgeneratoren umfassen.
- Verfahren zum Erzeugen von Lichtstrahlung, wobei das Verfahren umfasst:- Erzeugen einer ersten weißen Lichtstrahlung mit (141) einer ersten Farbtemperatur,- Erzeugen einer zweiten weißen Lichtstrahlung mit (142) einer zweiten Farbtemperatur, die sich von der ersten Farbtemperatur der ersten Lichtstrahlung (141) unterscheidet,- Erzeugen einer dritten nicht-weißen Lichtstrahlung (143) von grüner Farbe,- Mischen der ersten (141), zweiten (142) und dritten (143) Lichtstrahlung, das eine gemischte Lichtstrahlung mit einer Farbtemperatur zwischen der ersten und der zweiten Farbtemperatur erzeugt,- Erzeugen der ersten (141), zweiten (142) und dritten (143) Lichtstrahlung über elektrisch betriebene Lichtstrahlungsquellen, wobei der emittierte Lichtfluss selektiv als eine Funktion der daran angelegten Spannung und/oder des daran angelegten Stroms variabel ist, und- Bereitstellen einer Treiberschaltung (14), die mit den Lichtstrahlungsquellen (141, 142, 143) gekoppelt ist, um den Lichtfluss der Lichtstrahlungsquellen (141, 142, 143) selektiv zu variieren, durch Variieren der daran angelegten Spannung und/oder des daran angelegten Stroms; dadurch gekennzeichnet, dass das Verfahren ferner durch die Treiberschaltung umfasst ist:- Versorgen der Lichtstrahlungsquellen (141, 142, 143) mit pulsbreitenmodulierten Signalen, die ein variables Tastverhältnis aufweisen, und- Durchführen von Dimmen von Lichtstrahlung von den Lichtstrahlungsquellen (141, 142, 143) durch Reduzieren des Tastverhältnisses der pulsbreitenmodulierten Signale von einem oberen auf einen unteren Wert, indem das Tastverhältnis der Versorgungssignale für die erste (141) und dritte (143) Strahlungsquelle kleiner gehalten wird als das Tastverhältnis des Versorgungssignals für die zweite (142) Lichtstrahlungsquelle.
- Verfahren nach Anspruch 7, umfassend Einstellen der Intensität der dritten Lichtstrahlung von grüner Farbe (143) durch Verschieben des Farbpunktes der gemischten Lichtstrahlung in dem CIE 1931 Diagramm auf die Schwarzkörper-Emissionskurve (BB).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT201700147440 | 2017-12-20 |
Publications (2)
Publication Number | Publication Date |
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EP3503687A1 EP3503687A1 (de) | 2019-06-26 |
EP3503687B1 true EP3503687B1 (de) | 2020-08-05 |
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Application Number | Title | Priority Date | Filing Date |
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EP18211986.7A Active EP3503687B1 (de) | 2017-12-20 | 2018-12-12 | Beleuchtungsvorrichtung und zugehöriges verfahren zur chromatischen kompensation |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116600437A (zh) * | 2023-07-19 | 2023-08-15 | 深圳市美尚照明有限公司 | 一种快速调节色温色容差的led灯带及方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012140634A1 (en) * | 2011-04-12 | 2012-10-18 | Koninklijke Philips Electronics N.V. | Apparatus, system and method for pulse width modulated lighting control |
US20140265921A1 (en) * | 2013-03-13 | 2014-09-18 | Cree, Inc. | Solid State Lighting Apparatus and Methods of Forming |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US8358089B2 (en) * | 2010-05-08 | 2013-01-22 | Lightel Technologies Inc. | Solid-state lighting of a white light with tunable color temperatures |
EP2753871B1 (de) * | 2011-09-08 | 2016-11-02 | LG Innotek Co., Ltd. | Beleuchtungsvorrichtung und beleuchtungssteuerungsverfahren |
CN106465510B (zh) * | 2014-03-20 | 2019-10-01 | 东芝高新材料公司 | 发光装置以及led灯泡 |
KR102374266B1 (ko) * | 2015-10-02 | 2022-03-18 | 삼성전자주식회사 | 백색 발광 모듈 및 led 조명 장치 |
EP3446546B1 (de) * | 2016-04-22 | 2022-01-26 | Signify Holding B.V. | Verfahren zur steuerung einer beleuchtungsanordnung und beleuchtungssteuerungsschaltung |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012140634A1 (en) * | 2011-04-12 | 2012-10-18 | Koninklijke Philips Electronics N.V. | Apparatus, system and method for pulse width modulated lighting control |
US20140265921A1 (en) * | 2013-03-13 | 2014-09-18 | Cree, Inc. | Solid State Lighting Apparatus and Methods of Forming |
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EP3503687A1 (de) | 2019-06-26 |
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