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EP1083774A3 - Lighting device with Leds - Google Patents

Lighting device with Leds Download PDF

Info

Publication number
EP1083774A3
EP1083774A3 EP00119068A EP00119068A EP1083774A3 EP 1083774 A3 EP1083774 A3 EP 1083774A3 EP 00119068 A EP00119068 A EP 00119068A EP 00119068 A EP00119068 A EP 00119068A EP 1083774 A3 EP1083774 A3 EP 1083774A3
Authority
EP
European Patent Office
Prior art keywords
light
leds
lighting device
emitting diode
switching
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Withdrawn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
EP00119068A
Other languages
German (de)
French (fr)
Other versions
EP1083774A2 (en
Inventor
Klaus Dipl.Ing. Nachtigall
Hubert Dipl.Phys. Zwick
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP1083774A2 publication Critical patent/EP1083774A2/en
Publication of EP1083774A3 publication Critical patent/EP1083774A3/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Withdrawn legal-status Critical Current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]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs

Landscapes

  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

Eine LED-Leuchte (1) für Kraftfahrzeuge, weist als Lichtquelle mindestens eine Leuchtdiode (2a) auf, für die eine Schutzschaltung vorgesehen ist. Diese hat wenigstens einen Temperaturfühler (11) zur Messung der Umgebungstemperatur und mindestens ein Schaltmittel zum Abschalten der Leuchdiode(n) (2a) beim Überschreiten eines vorgegebenen Temperaturschwellwertes.

Figure 00000001
An LED light (1) for motor vehicles has at least one light-emitting diode (2a) as a light source, for which a protective circuit is provided. This has at least one temperature sensor (11) for measuring the ambient temperature and at least one switching means for switching off the light-emitting diode (s) (2a) when a predetermined temperature threshold value is exceeded.
Figure 00000001
EP00119068A 1999-09-10 2000-09-02 Lighting device with Leds Withdrawn EP1083774A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19943345A DE19943345A1 (en) 1999-09-10 1999-09-10 LED light
DE19943345 1999-09-10

Publications (2)

Publication Number Publication Date
EP1083774A2 EP1083774A2 (en) 2001-03-14
EP1083774A3 true EP1083774A3 (en) 2002-01-30

Family

ID=7921517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00119068A Withdrawn EP1083774A3 (en) 1999-09-10 2000-09-02 Lighting device with Leds

Country Status (2)

Country Link
EP (1) EP1083774A3 (en)
DE (1) DE19943345A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1313353A1 (en) * 2001-11-19 2003-05-21 Nokia Corporation Method and device for operating a light emitting diode
DE10239449B4 (en) * 2002-02-06 2013-10-24 Ulrich Kuipers Method and device for the realization of LED lights with color and brightness adjustment and the associated control element
DE10214447A1 (en) * 2002-03-30 2003-10-16 Hella Kg Hueck & Co Control device for controlling electrical lamps and headlights with such a control device
US6998594B2 (en) * 2002-06-25 2006-02-14 Koninklijke Philips Electronics N.V. Method for maintaining light characteristics from a multi-chip LED package
DE102005039792A1 (en) * 2005-08-22 2007-03-01 Elwa Klaus Warzog Gmbh Lighting device for studio photography, has control device that is connected with lamp by adaptor and controlling illuminant for illuminating motive during continuous operation and flash lighting motive during flash operation
EP2066149A3 (en) * 2007-11-27 2009-08-19 Stefan Ruppel Flat LED lights with heat-dispersing board, in particular for furniture
DE102010002227A1 (en) * 2010-02-23 2011-08-25 Tridonic Ag Protection of LEDs against overheating and high through-current
DE102012206888A1 (en) * 2012-04-26 2013-10-31 Zumtobel Lighting Gmbh LED array
DE102013102312B3 (en) * 2013-03-08 2014-07-03 Vossloh-Schwabe Deutschland Gmbh Operating circuit for operating light-emitting module at power source, has protective circuit that is switched only into conductive state by control signal, if applied voltage on current limiting circuit exceeds threshold level
DE102018108412A1 (en) * 2018-04-10 2019-10-10 Siteco Beleuchtungstechnik Gmbh TEMPERATURE SUPERVISED LED MODULE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9002812U1 (en) * 1990-02-13 1990-06-07 Siemens AG, 1000 Berlin und 8000 München Infrared spotlights
WO1998016942A1 (en) * 1996-10-11 1998-04-23 Catalina Lighting, Inc. Fire-safe halogen torchiere lamp
DE19728763A1 (en) * 1997-07-07 1999-01-14 Reitter & Schefenacker Gmbh Circuit device for protecting current-operated lamps, in particular LEDs, for signal or lighting purposes
DE19805771A1 (en) * 1998-02-13 1999-08-19 Hohe Gmbh & Co Kg Illumination unit for motor vehicle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8006555U1 (en) * 1981-02-05 Semikron Gesellschaft Fuer Gleichrichterbau Und Elektronik Mbh, 8500 Nuernberg Semiconductor device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9002812U1 (en) * 1990-02-13 1990-06-07 Siemens AG, 1000 Berlin und 8000 München Infrared spotlights
WO1998016942A1 (en) * 1996-10-11 1998-04-23 Catalina Lighting, Inc. Fire-safe halogen torchiere lamp
DE19728763A1 (en) * 1997-07-07 1999-01-14 Reitter & Schefenacker Gmbh Circuit device for protecting current-operated lamps, in particular LEDs, for signal or lighting purposes
DE19805771A1 (en) * 1998-02-13 1999-08-19 Hohe Gmbh & Co Kg Illumination unit for motor vehicle

Also Published As

Publication number Publication date
DE19943345A1 (en) 2001-03-15
EP1083774A2 (en) 2001-03-14

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