Illumination device for simulating neon lighting through use...

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

Patent

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F21V 8/00 (2006.01) F21S 4/00 (2006.01) F21V 9/16 (2006.01)

Patent

CA 2488494

An illumination device simulates neon lighting and allows for emission of light in colors that cannot ordinarily be achieved by use of LEDs along through the incorporation of a light color conversion system into the illumination device. This light color conversion system comprises an intermediate light-transmitting medium (22) tinted with a predetermined combination of one or more fluorescent dyes. Light emitted from the light source (16) of the illumination device is directed into the intermediate light- transmitting medium (22) and interacts with the fluorescent dyes contained therein. This light is partially absorbed by each of the fluorescent dyes of the intermediate light-transmitting medium, and a lower-energy light is then emitted from each of the fluorescent dyes and into the light-receiving surface (12) of the waveguide. Thus, selection of appropriate combinations of dyes results in various colors being emitted from the illumination device.

L'invention concerne un dispositif d'éclairage qui simule un éclairage au néon, grâce à l'incorporation d'un système de conversion des couleurs de la lumière en dispositif d'éclairage, et permet une émission de la lumière en couleurs d'ordinaire impossible à réaliser à l'aide d'une DEL seule. Le système de conversion des couleurs de la lumière comprend un support d'émission de lumière intermédiaire teinté avec une combinaison préétablie d'un ou de plusieurs colorants fluorescents. La lumière émanant de la source lumineuse du dispositif d'éclairage est dirigée à l'intérieur du support d'émission de lumière intermédiaire et interagit avec les colorants fluorescents qu'il contient. La lumière est partiellement absorbée par chacun des colorants fluorescents du support d'émission de lumière intermédiaire, et une lumière d'énergie plus basse est ensuite émise par chaque colorant fluorescent en direction de la surface de réception optique du guide d'onde. Ainsi, le choix de combinaisons appropriées de colorants produit une émission de diverses couleurs à partir du dispositif d'éclairage.

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