EP 1155454 A1 20011121 - LIGHT SOURCE WITH LIGHT-EMITTING DIODES
Title (en)
LIGHT SOURCE WITH LIGHT-EMITTING DIODES
Title (de)
LICHTQUELLE DIE LICHTEMITTIERENDE DIODEN VERWENDET
Title (fr)
SOURCE LUMINEUSE A DIODES ELECTROLUMINESCENTES
Publication
Application
Priority
- FR 0000154 W 20000125
- FR 9901102 A 19990201
Abstract (en)
[origin: FR2789258A1] The invention concerns a light source with light-emitting diodes comprising several levels of diodes such that the light emitted by the diodes at a lower level passes through the higher levels where other diodes are located. The resulting light sources provide an illumination higher than that normally provided by a source having diodes at only one level. The invention is useful each time strong illumination needs to be provided from a limited radiating surface.
IPC 1-7
IPC 8 full level
F21S 8/00 (2006.01); H01L 25/13 (2006.01)
CPC (source: EP US)
F21S 8/00 (2013.01 - EP US); F21W 2111/06 (2013.01 - EP); F21Y 2115/10 (2016.07 - EP US); H01L 25/13 (2013.01 - EP); H01L 2924/0002 (2013.01 - EP)
Citation (search report)
See references of WO 0046853A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
FR 2789258 A1 20000804; FR 2789258 B1 20010330; AU 3059200 A 20000825; EP 1155454 A1 20011121; WO 0046853 A1 20000810
DOCDB simple family (application)
FR 9901102 A 19990201; AU 3059200 A 20000125; EP 00900654 A 20000125; FR 0000154 W 20000125