Title:
METHODS AND APPARATUS FOR END-OF-LIFE ESTIMATION OF SOLID STATE LIGHTING FIXTURES
Document Type and Number:
WIPO Patent Application WO/2012/156857
Kind Code:
A3
Abstract:
The present disclosure is directed to methods and apparatus for estimating end-of-life for solid state lighting. By tracking actual operating parameters, such as the temperature (330) and current (320) supplied to a lighting fixture (100) over time and comparing it with estimated life time prediction data (370) stored in a look-up table (360), a precise prediction of the lifetime status of the lighting fixture may be obtained.
Inventors:
DE LIMA SHANE FELIX ELIAS (US)
TRIVEDI HIMANSHU GULABRAI (US)
VAN DRIEL WILLEM DIRK (NL)
TRIVEDI HIMANSHU GULABRAI (US)
VAN DRIEL WILLEM DIRK (NL)
Application Number:
PCT/IB2012/052236
Publication Date:
January 10, 2013
Filing Date:
May 04, 2012
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
DE LIMA SHANE FELIX ELIAS (US)
TRIVEDI HIMANSHU GULABRAI (US)
VAN DRIEL WILLEM DIRK (NL)
DE LIMA SHANE FELIX ELIAS (US)
TRIVEDI HIMANSHU GULABRAI (US)
VAN DRIEL WILLEM DIRK (NL)
International Classes:
H05B44/00
Domestic Patent References:
| WO2002015145A2 | 2002-02-21 | |||
| WO2009156590A1 | 2009-12-30 | |||
| WO2007022409A2 | 2007-02-22 |
Foreign References:
| US20060028155A1 | 2006-02-09 | |||
| US20090254287A1 | 2009-10-08 | |||
| US20040108982A1 | 2004-06-10 | |||
| US20120098430A1 | 2012-04-26 |
Attorney, Agent or Firm:
VAN EEUWIJK, Alexander et al. (Building 44, AE Eindhoven, NL)
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