Lighting system for transmitting and releasing luminescent...

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

Patent

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F21V 8/00 (2006.01) F21K 2/00 (2006.01) F21S 11/00 (2006.01)

Patent

CA 2257145

An optical conduit (53) for transmitting and releasing luminescent radiation (61, 62, 63) emitted from a luminescent concentrator (51), the luminescent concentrator (51) and optical conduit (53) comprising an optical system which is adapted to release to an area to be illuminated the luminescent radiation which is otherwise trapped in the optical system by total internal reflection. The optical conduit (53) includes a luminaire (57), such as a plurality of scattering regions for scattering trapped light so that the scattered light acquires the angle of incidence required to be released from the conduit (53). The scattering regions may be provided by shape irregularities on the surface of the conduit (53) or inhomogeneities within the conduit (53). The conduit (53) may consist of flexible overlaid light guides (65a, 65b and 65c) and a luminaire fitting (55) optically coupled thereto.

Cette invention concerne un conduit optique (53) qui permet de transmettre et de libérer un rayonnement luminescent (61, 62, 63) émis par un concentrateur luminescent (51). Le concentrateur luminescent (51) et le conduit optique (53) comprennent un système optique qui est conçu pour libérer le rayonnement luminescent dans une zone devant être éclairée, le rayonnement étant autrement prisonnier du système optique par réflexion interne totale. Le conduit optique (53) comprend un appareil d'éclairage (57) tel que plusieurs zones de dispersion, lesquelles vont disperser la lumière prisonnière de manière à ce que cette dernière acquière l'angle d'incidence nécessaire à sa libération du conduit (53). Les zones de dispersion peuvent consister en des irrégularités de forme à la surface du conduit (53) ou, encore, en des endroits non homogènes à l'intérieur dudit conduit (53). Ce conduit (53) peut se présenter sous forme de guides de lumière flexibles et superposés (65a, 65b, 65c) auxquels un dispositif d'éclairage (55) est couplé de manière optique.

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