EP1220578A3 - Process and device for changing the colour temperature - Google Patents

Process and device for changing the colour temperature Download PDF

Info

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Withdrawn
Application number
EP01890346A
Other languages
German (de)
French (fr)
Other versions
EP1220578A2 (en
Inventor
Harald Schweigert
Stefan Gut
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.)
Siemens AG Oesterreich
Original Assignee
Siemens AG Oesterreich
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 Siemens AG Oesterreich filed Critical Siemens AG Oesterreich
Publication of EP1220578A2 publication Critical patent/EP1220578A2/en
Publication of EP1220578A3 publication Critical patent/EP1220578A3/en
Withdrawn legal-status Critical Current

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.

Figure 00000001
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.
Figure 00000001
EP01890346A 2000-12-21 2001-12-20 Process and device for changing the colour temperature Withdrawn EP1220578A3 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
DE60219504T2 (en) LED CONTROL DEVICE
DE69723831D1 (en) MULTICOLORED ORGANIC EL ELEMENT, METHOD FOR PRODUCING THE SAME AND DISPLAY USING THE SAME
US7481555B2 (en) LED melody decoration kit with multicolor light sources
DE60038435T2 (en) Optical code reader with colored housing
EP0952757A3 (en) Circuit for controlling the light intensity of current controlled LEDS for display illumination
EP1422468A3 (en) Portabel lamp with light emitting diodes
EP1199757A3 (en) Light emitting device with with coated phosphor
WO2007075815A3 (en) Lighting device and lighting method
ATE510307T1 (en) TRANSPARENT COATING FOR LIGHT ELEMENT DIODES AND FLUORESCENT LIGHT SOURCE
EP1139639A3 (en) Button for an electric device and method of controlling lighting of the button
CA2293571A1 (en) Controlled color laser marking of plastics
DE112011102994T5 (en) LED-based light source with decorative and lighting function
ATE220610T1 (en) MULTI-COLOURED BRUSH HANDLE AND METHOD AND APPARATUS FOR PRODUCING SUCH HANDLE
EP1161121A3 (en) Lighting device for a vehicle
EP1672707A3 (en) Light emitting device and fluorescent substance therefor
TW200609877A (en) Method of calibrating an illumination system and an illumination system
EP1220578A3 (en) Process and device for changing the colour temperature
ATE426652T1 (en) HIGH BRIGHTNESS ORANGE-YELLOW EMITTING ELECTROLUMINescent PHOSPHORUS AND METHOD FOR PRODUCING IT
EP0811499A3 (en) Method of manufacturing nozzle member, and work apparatus
EP1260196A3 (en) Illumination device
DE50204524D1 (en) METHOD FOR PRODUCING BLUE MICRO-CAPSULES
EP0772378A3 (en) Color/Brightness-adjustable light for automobiles and a color/brightness-adjustable method thereof
FR2803367B1 (en) LIGHT BOARD
ATE231969T1 (en) METHOD AND DEVICE FOR DISTINGUISHING SURFACE COLORS
EP0696375B1 (en) A method for compensation of colour at illumination of fluorescent objects

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20040701