DE50015302D1 - Device for displaying a message with a light-emitting diode - Google Patents

Device for displaying a message with a light-emitting diode

Info

Publication number
DE50015302D1
DE50015302D1 DE50015302T DE50015302T DE50015302D1 DE 50015302 D1 DE50015302 D1 DE 50015302D1 DE 50015302 T DE50015302 T DE 50015302T DE 50015302 T DE50015302 T DE 50015302T DE 50015302 D1 DE50015302 D1 DE 50015302D1
Authority
DE
Germany
Prior art keywords
emitting diode
message
displaying
light
operating current
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.)
Expired - Lifetime
Application number
DE50015302T
Other languages
German (de)
Inventor
Juergen Dipl-Ing F Adams
Werner Ing Grad Baldenhofer
Michael Dipl-Ing F Krieg
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Application granted granted Critical
Publication of DE50015302D1 publication Critical patent/DE50015302D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/14—Controlling the intensity 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits

Landscapes

  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)
  • Audible And Visible Signals (AREA)
  • Led Devices (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

The device has a light emitting diode and a control unit that controls its operating current. The control unit repeatedly and temporarily raises the light emitting diode's operating current (IN) above the usual level of the operating current in order to increase the signaling effect of the warning.
DE50015302T 1999-03-06 2000-03-01 Device for displaying a message with a light-emitting diode Expired - Lifetime DE50015302D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19909950A DE19909950A1 (en) 1999-03-06 1999-03-06 Device for displaying a message with a light emitting diode

Publications (1)

Publication Number Publication Date
DE50015302D1 true DE50015302D1 (en) 2008-09-25

Family

ID=7899976

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19909950A Withdrawn DE19909950A1 (en) 1999-03-06 1999-03-06 Device for displaying a message with a light emitting diode
DE50015302T Expired - Lifetime DE50015302D1 (en) 1999-03-06 2000-03-01 Device for displaying a message with a light-emitting diode

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19909950A Withdrawn DE19909950A1 (en) 1999-03-06 1999-03-06 Device for displaying a message with a light emitting diode

Country Status (3)

Country Link
EP (1) EP1035754B1 (en)
AT (1) ATE405135T1 (en)
DE (2) DE19909950A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6495964B1 (en) * 1998-12-18 2002-12-17 Koninklijke Philips Electronics N.V. LED luminaire with electrically adjusted color balance using photodetector
DE102004060483B4 (en) * 2004-12-16 2018-06-07 HELLA GmbH & Co. KGaA Method for operating a light flash warning device with at least one light emitting diode
FR2889643A1 (en) * 2005-08-08 2007-02-09 Valeo Systemes Thermiques Control board`s light intensity adjusting device for motor vehicle, has light sources supplied with supply currents from control interfaces, and control correctors modulating current in light sources according to required luminance
FR2998035A1 (en) * 2013-05-07 2014-05-16 Continental Automotive France Lighting device for low definition display of car, has control circuit, where secondary impulse is received during interval of time having duration during which heat produced by on-impulse and by secondary impulse are evacuated by device
DE102015116492A1 (en) 2015-09-29 2017-03-30 Eaton Electrical Ip Gmbh & Co. Kg Control circuit for driving a plurality of light-emitting diodes and command and / or signaling device with the control circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2711884B1 (en) * 1993-10-29 1996-01-05 Solartec Sarl Signaling device in particular for road, aeronautical or maritime signaling.
FR2714564B1 (en) * 1993-12-28 1996-02-09 Etat Francais Labo Cl Ponts Ch Method for controlling a light source, means for implementing this method and device equipped with said means.
US5783909A (en) * 1997-01-10 1998-07-21 Relume Corporation Maintaining LED luminous intensity
US5850126A (en) * 1997-04-11 1998-12-15 Kanbar; Maurice S. Screw-in led lamp
US5929568A (en) * 1997-07-08 1999-07-27 Korry Electronics Co. Incandescent bulb luminance matching LED circuit

Also Published As

Publication number Publication date
EP1035754A3 (en) 2001-12-05
EP1035754B1 (en) 2008-08-13
DE19909950A1 (en) 2000-09-07
ATE405135T1 (en) 2008-08-15
EP1035754A2 (en) 2000-09-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition