Efficient light engine systems, components and methods of...

G - Physics – 02 – B

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G02B 27/00 (2006.01) F21V 7/04 (2006.01) F21V 8/00 (2006.01) G02B 6/00 (2006.01) G02B 6/42 (2006.01) G02B 27/18 (2006.01)

Patent

CA 2339545

An etendue efficient angle conversion system that operates in a quasi-imaging mode. This system is capable of generating angular and spatial axial asymmetric output beams (R, G, B) and is also capable of incorporating therein optional color reformatting capabilities (230). With the aid of anamorphic beam transformer such asymmetric beams can further be reformatted to spatially and angularly match particular illumination needs of a target. This system can further be applied to the design of fiber optic illumination systems and projection display systems and can further be combined with delivery efficiency maximization concepts. In addition, delivery efficiency improvements of light engines can be obtained with the use of optimized lamp, reflector, integrators, anamorphic beam transformers, coupling optics, etc.

L'invention porte sur un système étendu et efficace de conversion d'angles opérant dans un mode de quasi-imagerie et capable de d'émettre des faisceaux spatiaux sans symétrie axiale (R, G, B) et également d'y incorporer des capacités (230) facultatives de correction des couleurs. A l'aide d'un transformateur de faisceaux anamorphe, lesdits faisceaux asymétriques peuvent en outre être corrigés pour s'adapter spatialement et angulairement aux besoins particuliers d'éclairage d'une cible. Le système peut de plus s'appliquer à la conception de systèmes d'éclairage par fibres optiques et de projection d'images, et se combiner à des concepts maximalisant l'efficacité de distribution. Il permet également d'obtenir des améliorations de l'efficacité de distribution de systèmes d'éclairage en recourant à des lampes, des réflecteurs, des intégrateurs, des transformateurs de faisceaux anamorphes, et des optiques de couplages optimisés.

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