F - Mech Eng,Light,Heat,Weapons – 21 – V
Patent
F - Mech Eng,Light,Heat,Weapons
21
V
F21V 5/02 (2006.01) F21K 99/00 (2010.01) H01L 33/00 (2010.01)
Patent
CA 2699720
A LED illuminating device comprising: a plurality of LEDs (10a-10e); an optical element (20) of a substantially planar extension and having a substantially flat first surface (21) facing said LEDs (10a-10e); and a second prism-like surface (22) opposite to said first surface (21), said LEDs (10a- 10e) being divided into groups (11a-11e) and disposed in such a manner that main lighting directions (Da-De) of LEDs belonging to the same group form equal angles with the first surface (21) of said optical element (20), and main lighting directions (Da-De) of LEDs belonging to different groups form different angles with the first surface (21) of said optical element (20).
La présente invention porte sur un dispositif d'éclairage à DEL comprenant une pluralité de DEL (10a-10e); un élément optique (20) s'étandant de manière sensiblement plane et comportant une première surface sensiblement plate (21) faisant face auxdites DEL (10a-10e); et une seconde surface de type prisme (22) opposée à la première surface (21), les DEL (10a-10e) étant divisées en groupes (11a-11e) et disposées de telle sorte que les principales directions d'éclairage (Da à De) des DEL appartenant au même groupe forment des angles égaux par rapport à la première surface (21) de l'élément optique (20) et que les directions principales d'éclairage (Da-De) des DEL appartenant à des groupes différents forment des angles différents par rapport à la première surface (21) de l'élément optique (20).
Goudreau Gage Dubuc
Wissenlux S.r.l.
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