EP1220578A3 - Process and device for changing the colour temperature - Google Patents
Process and device for changing the colour temperature Download PDFInfo
- Publication number
- EP1220578A3 EP1220578A3 EP01890346A EP01890346A EP1220578A3 EP 1220578 A3 EP1220578 A3 EP 1220578A3 EP 01890346 A EP01890346 A EP 01890346A EP 01890346 A EP01890346 A EP 01890346A EP 1220578 A3 EP1220578 A3 EP 1220578A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- changing
- colour temperature
- light
- bel
- emitting diodes
- 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.)
- Withdrawn
Links
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]
- H05B45/20—Controlling the colour of the light
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Abstract
Ein Verfahren und eine Vorrichtung zur Veränderung der Farbtemperatur und der Helligkeit einer Beleuchtungsvorrichtung (BEL), welche zumindest zwei Leuchtdioden (Db, Dg, Dr) umfasst, die Licht unterschiedlicher Farbtöne emittieren, wobei die Farbtemperatur der Beleuchtungsvorrichtung (BEL) über die jeweilige Speisespannung (UA1, UA2, UA3) und/oder den jeweiligen Speisestrom (IA1, IA2, IA3) der zumindest zwei Leuchtdioden (Db, Dg, Dr) eingestellt wird. A method and a device for changing the color temperature and the brightness of a lighting device (BEL) which comprises at least two light-emitting diodes (D b , D g , D r ) which emit light of different colors, the color temperature of the lighting device (BEL) being determined by the the respective supply voltage (U A1 , U A2 , U A3 ) and / or the respective supply current (I A1 , I A2 , I A3 ) of the at least two light-emitting diodes (D b , D g , D r ) is set.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT9422000 | 2000-12-21 | ||
AT9422000U | 2000-12-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1220578A2 EP1220578A2 (en) | 2002-07-03 |
EP1220578A3 true EP1220578A3 (en) | 2004-11-17 |
Family
ID=32996799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01890346A Withdrawn EP1220578A3 (en) | 2000-12-21 | 2001-12-20 | Process and device for changing the colour temperature |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1220578A3 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI115948B (en) * | 2003-06-06 | 2005-08-15 | Teknoware Oy | Adjusting the color temperature of the luminaire |
DE10349553B4 (en) * | 2003-06-25 | 2007-04-19 | Digitallicht Ag | Method and light network for brightness control and dynamic color mixing of LED units |
DE102007052854A1 (en) | 2007-11-06 | 2009-05-07 | Münchner Hybrid Systemtechnik GmbH | LED lamp's light emission controlling method, involves selecting color temperature based on luminance reference value, and controlling LEDs for adjusting selected color temperature with respect to desired luminance of LED lamp |
DE102008013049A1 (en) * | 2008-03-06 | 2009-09-24 | Mbb International Group Ag | Luminaire, in particular for achieving a daylight-like light spectrum |
DE102008013048A1 (en) * | 2008-03-06 | 2009-09-24 | Mbb International Group Ag | Luminaire, in particular for achieving a daylight-like luminous spectrum |
DE102010000672A1 (en) * | 2010-01-05 | 2011-07-07 | Tridonic Ag | Combined method for operating an electrical lamp and operating circuit |
DE102012211828B4 (en) | 2012-07-06 | 2023-03-02 | Lisa Dräxlmaier GmbH | LED lighting for vehicles |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5895128A (en) * | 1997-01-21 | 1999-04-20 | Minolta Co., Ltd. | Electronic flash and a camera provided with the same |
US6016038A (en) * | 1997-08-26 | 2000-01-18 | Color Kinetics, Inc. | Multicolored LED lighting method and apparatus |
-
2001
- 2001-12-20 EP EP01890346A patent/EP1220578A3/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5895128A (en) * | 1997-01-21 | 1999-04-20 | Minolta Co., Ltd. | Electronic flash and a camera provided with the same |
US6016038A (en) * | 1997-08-26 | 2000-01-18 | Color Kinetics, Inc. | Multicolored LED lighting method and apparatus |
Also Published As
Publication number | Publication date |
---|---|
EP1220578A2 (en) | 2002-07-03 |
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Legal Events
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STAA | Information on the status of an ep patent application or granted ep patent |
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18D | Application deemed to be withdrawn |
Effective date: 20040701 |