Beamformer for a remotely illuminated lighting system and...

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

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F21V 8/00 (2006.01)

Patent

CA 2319324

A remotely illuminated lighting system distributes from a central illumination source light signals to remote light distribution devices (14). Each remote light distribution device (14) or beamformer, is adaptable to produce a highly precise distribution pattern (132) from the light signals. The distribution pattern (132) may be easily adjusted in both horizontal and vertical directions. In a first preferred arrangement, each beamformer is coupled via a fiber-optic cable to the central light source and includes a non-imaging light transformer (120) and a conical reflective element (112). In additional preferred embodiments, a holographic diffuser and/or a masking element are incorporated for adapting the shape of the light distribution pattern. An electronically controlled masking element may be further incorporated for providing flashing, moving or otherwise dynamic light distribution patterns.

La présente invention concerne un système lumineux d'éclairage à distance distribuant depuis une source lumineuse centrale des signaux lumineux à des dispositifs de distribution de lumière distants (14). Chaque dispositif de distribution de lumière distant (14) ou formeur de faisceaux est conçu pour produire à partir de ces signaux lumineux un modèle de distribution hautement précis (132). Par ailleurs, on peut facilement ajuster le modèle de distribution (132), à la fois dans la direction horizontale et verticale. Dans un premier mode de réalisation, chaque formeur de faisceaux est couplé à la source lumineuse centrale via un câble à fibres optiques, et comprend un transformateur de lumière par réflexion (120) et un élément conique réfléchissant (112). Dans d'autres modes de réalisation, on ajoute un diffuseur holographique et/ou un élément de masquage afin d'adapter la forme du modèle de distribution de lumière. Enfin, on peut égalent ajouter un élément de masquage à commande électronique permettant de fournir des modèles clignotants, mobiles ou dynamiques de distribution de lumière.

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