WO2013140280A3 - Lighting system with lifetime indicator and method for estimating the remaining life time of a lighting system - Google Patents

Lighting system with lifetime indicator and method for estimating the remaining life time of a lighting system Download PDF

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Publication number
WO2013140280A3
WO2013140280A3 PCT/IB2013/051528 IB2013051528W WO2013140280A3 WO 2013140280 A3 WO2013140280 A3 WO 2013140280A3 IB 2013051528 W IB2013051528 W IB 2013051528W WO 2013140280 A3 WO2013140280 A3 WO 2013140280A3
Authority
WO
WIPO (PCT)
Prior art keywords
lighting system
estimating
temperature
control unit
life time
Prior art date
Application number
PCT/IB2013/051528
Other languages
French (fr)
Other versions
WO2013140280A2 (en
Inventor
Franciska Elisabeth EVERTZ
Jeroen Johannes Maria ZAAL
Willem Dirk Van Driel
Original Assignee
Koninklijke Philips N.V.
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 Koninklijke Philips N.V. filed Critical Koninklijke Philips N.V.
Publication of WO2013140280A2 publication Critical patent/WO2013140280A2/en
Publication of WO2013140280A3 publication Critical patent/WO2013140280A3/en

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
    • H05B45/58—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving end of life detection of LEDs
    • 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
    • H05B45/28—Controlling the colour of the light using temperature feedback
    • 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
    • H05B45/357—Driver circuits specially adapted for retrofit LED light sources
    • H05B45/3574—Emulating the electrical or functional characteristics of incandescent lamps
    • H05B45/3577—Emulating the dimming characteristics, brightness or colour temperature of incandescent lamps
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The disclosed embodiments relate to a lighting system (1) comprising a light source (2) arranged for emitting light, a temperature sensor (3) adapted to detect a temperature of said lighting system (1) when in an on-state, a control unit (4) connected to said temperature sensor (3), said control unit (4) being adapted to calculate a temperature difference between said temperature detected by said temperature sensor (3) and a default temperature preset in said control unit (4), and an indicator (5) connected to said control unit (4) and adapted to display said temperature difference. The invention also relates to a method for estimating the remaining lifetime of a lighting system.
PCT/IB2013/051528 2012-03-22 2013-02-26 Lighting system with lifetime indicator and method for estimating the remaining life time of a lighting system WO2013140280A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261614020P 2012-03-22 2012-03-22
US61/614,020 2012-03-22

Publications (2)

Publication Number Publication Date
WO2013140280A2 WO2013140280A2 (en) 2013-09-26
WO2013140280A3 true WO2013140280A3 (en) 2014-01-23

Family

ID=48227345

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2013/051528 WO2013140280A2 (en) 2012-03-22 2013-02-26 Lighting system with lifetime indicator and method for estimating the remaining life time of a lighting system

Country Status (1)

Country Link
WO (1) WO2013140280A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013018120B4 (en) 2013-11-29 2022-02-10 Cooper Crouse-Hinds Gmbh Method for monitoring the temperature of a lamp
EP3095709B1 (en) 2015-05-20 2018-01-10 Goodrich Lighting Systems GmbH Exterior aircraft lighting device
FR3115351B1 (en) * 2020-10-15 2022-10-14 Valeo Vision Method for detecting a failure in a solid-state light source of an automotive lighting device and automotive arrangement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6726112B1 (en) * 2003-03-07 2004-04-27 Joseph Ho Illuminating thermostat
US20060028155A1 (en) * 2004-08-09 2006-02-09 Dialight Corporation Intelligent drive circuit for a light emitting diode (LED) light engine
US20070040696A1 (en) * 2005-08-18 2007-02-22 Honeywell International Inc. Aerospace light-emitting diode (LED)-based lights life and operation monitor compensator
US20100052542A1 (en) * 2008-09-02 2010-03-04 Altair Engineering, Inc. Led lamp failure alerting system
US20110115383A1 (en) * 2009-11-13 2011-05-19 Honeywell International Inc. Thermally compensated end of life timer for led based aircraft lighting
US20110301909A1 (en) * 2010-06-04 2011-12-08 Tyco Electronics Corporation Temperature measurement system for a light emitting diode (led) assembly

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4046778B2 (en) 1995-04-05 2008-02-13 ソニー株式会社 Optical disk recording / reproducing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6726112B1 (en) * 2003-03-07 2004-04-27 Joseph Ho Illuminating thermostat
US20060028155A1 (en) * 2004-08-09 2006-02-09 Dialight Corporation Intelligent drive circuit for a light emitting diode (LED) light engine
US20070040696A1 (en) * 2005-08-18 2007-02-22 Honeywell International Inc. Aerospace light-emitting diode (LED)-based lights life and operation monitor compensator
US20100052542A1 (en) * 2008-09-02 2010-03-04 Altair Engineering, Inc. Led lamp failure alerting system
US20110115383A1 (en) * 2009-11-13 2011-05-19 Honeywell International Inc. Thermally compensated end of life timer for led based aircraft lighting
US20110301909A1 (en) * 2010-06-04 2011-12-08 Tyco Electronics Corporation Temperature measurement system for a light emitting diode (led) assembly

Also Published As

Publication number Publication date
WO2013140280A2 (en) 2013-09-26

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