Semiconductor-based lighting systems and lighting system...

Details Semiconductor-based lighting systems and lighting system... Semiconductor-based lighting systems and lighting system...

H - Electricity

01

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H01L 23/36 (2006.01) B60Q 1/04 (2006.01) F21S 8/10 (2006.01) F21V 5/04 (2006.01) F21V 8/00 (2006.01) F21V 29/00 (2006.01) H05B 33/00 (2006.01) H01L 33/00 (2006.01)

Patent

CA 2628141

A modular semiconductor light source assembly (20) includes a semiconductor light source, such as a light emitting diode (24), which is mounted on a substrate (28) which supplies electricity to the light source (24) and which assists in removing waste heat therefrom. Substantially all of the light emitted by the LED (24) is transferred to a lens (40) by a light pipe (36), the cross section of the light pipe (36) increasing from the light source (24) to the lens (40) and the lens (40) having a general D-shape such that the light pattern formed by the lens (40) is constrained in a first direction orthogonal to a second direction. The assembly (20) can be combined with other similar assemblies or other light sources in a light fixture to produce a desired overall beam pattern such as a automobile headlamp low beam or high beam pattern.

La présente invention se rapporte à un ensemble source lumineuse à semi-conducteur modulaire (20), qui comprend une source lumineuse à semi-conducteur, telle qu'une diode électroluminescente (24), qui est montée sur un substrat (28) qui l'alimente en électricité et contribue à en éliminer la chaleur résiduelle. Sensiblement toute la lumière émise par la DEL (24) est transférée vers une lentille (40) par un conducteur de lumière (36) dont la section transversale augmente progressivement de la source lumineuse (24) à la lentille (40). La lentille (40) possède une forme générale en D, de façon que le motif de lumière formé par ladite lentille (40) soit limité dans une première direction perpendiculaire à une seconde direction. L'ensemble (20) selon l'invention peut être combiné à d'autres ensembles analogues ou d'autres sources lumineuses dans un luminaire, afin de produire un motif de faisceau global désiré, tel qu'un motif de faisceau bas ou de faisceau haut pour phares d'automobiles.

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