Light guide system

G - Physics – 02 – B

Patent

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Details

G02B 6/00 (2006.01) F21V 8/00 (2006.01)

Patent

CA 2516120

The invention relates to a light guide system (1) comprising a hollow light guide (2) and a light source (3) positioned to direct light into the light guide (2) from one end (4), the light guide (2) having light-guiding walls that cause the light to travel in the space within the light guide (2) towards the other end (5) thereof; and, in the space within the light guide (2), at least one light-extracting element (650, 660) having at least one curved surface that functions as a non-transmissive specular or narrow- or wide- scattering reflector, the curved reflecting surface(s) being shaped so that light from the source that is reflected therefrom will inpinge on a light- guiding wall of the light guide (2) at such an angle as to emerge from the light guide (2).

L'invention concerne un système de guidage lumineux (1) comprenant un guide lumineux (2) creux et une source lumineuse (3) placée de manière à diriger la lumière dans le guide lumineux (2) à partir d'une extrémité (4). Le guide lumineux (2) a des parois de guidage lumineux de sorte que la lumière traverse l'espace à l'intérieur du guide lumineux (2) en direction de l'autre extrémité (5) de ce dernier ; et, dans l'espace à l'intérieur du guide lumineux (2), au moins un élément d'extraction de la lumière (650, 660) présente au moins une surface incurvée qui fonctionne tel un réflecteur spéculaire non transmissif ou de diffusion étroite ou large, la forme des surfaces réfléchissantes incurvées étant telle que la lumière provenant de la source qui s'y réfléchie viendra heurter la paroi de guidage lumineux du guide lumineux (2) suivant un angle tel qu'elle sort dudit guide lumineux (2).

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