High performance lighting louvers and luminaires

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

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F21V 11/02 (2006.01)

Patent

CA 2588472

Lighting louvers formed by transverse and longitudinal blades improve the performance of indirect ambient light luminaires by increasing light output, widening the output of the luminaire's maximum intensity light, or both. These lighting louvers include at least one of the following features: non- symmetrically shaped apertures, wider apertures over (or under) the luminaire's lamp (s), longitudinal blades of shorter height nearest the lamps, and longitudinal blades having differently curved longitudinal sides. Each of these features contributes to improved luminaire performance.

L'invention concerne des persiennes d'éclairage formées de lames transversales et longitudinales qui améliorent l'efficacité d'appareils d'éclairage ambiant indirect en augmentant la sortie d'éclairage, ou en élargissant la sortie de la lumière d'intensité maximale de l'appareil d'éclairage, ou les deux à la fois. Ces persiennes d'éclairage comportent au moins une des caractéristiques suivantes: ouvertures non symétriques, ouvertures plus larges au-dessus de la (des) lampe(s) (ou sous celle(s)-ci), lames longitudinales moins hautes à proximité des lampes, et lames longitudinales ayant des côtés longitudinaux différemment courbes. Chacune de ces caractéristiques contribue à une meilleure efficacité de l'appareil d'éclairage.

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