Lighting apparatus using light emitting diode

F - Mech Eng,Light,Heat,Weapons – 21 – S

Patent

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F21S 13/10 (2006.01)

Patent

CA 2712171

The invention includes a lamp housing mem-ber having a circular upper plate and a side portion formed at the outer circumference of the upper plate, first light emitting diode modules that are provided on a lower surface of the upper plate and are supplied with power to emit light, and second light emitting diode modules that are mounted on the inner surface of the side portion and are supplied with power to emit light. According to the invention, it is possible to increase a light dis-tribution area, achieve illumination with high brightness, and improve flexibility in the road lighting design. In addition, it is possible to easily ensure a cut-off-angle at which pedestrians or drivers cannot directly view the second light emitting diode modules by adjusting the inclination angle of the side portion.

L'invention concerne un élément contenant une ampoule qui comprend une plaque supérieure circulaire et une partie latérale formée sur la circonférence extérieure de la plaque supérieure, des premiers modules de diodes électroluminescentes qui sont ménagés sur une surface inférieure de la plaque supérieure et qui sont alimentés en courant pour émettre de la lumière, et des seconds modules de diodes électroluminescentes qui sont montés sur la surface interne de la partie latérale et qui sont alimentés en courant pour émettre de la lumière. Selon l'invention, il est possible d'augmenter une zone de distribution de lumière, d'obtenir un éclairage présentant une luminosité élevée et d'améliorer la flexibilité de la conception de l'éclairage routier. En outre, il est possible d'assurer facilement un angle de défilement auquel les piétons ou conducteurs ne peuvent pas directement visualiser les seconds modules de diodes électroluminescentes en ajustant l'angle d'inclinaison de la partie latérale.

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