Optical device for led light sources

G - Physics – 02 – B

Patent

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G02B 6/00 (2006.01) G02B 6/42 (2006.01)

Patent

CA 2624146

Optical device and optical component part for the targeted reproduction of light emitted by LED light sources (6). The optical device comprises at least two component parts, a first optical component part (10) in the form of a solid waveguide and another component part for connection to the LED light source (6). In a system of Cartesian co-ordinates, the first optical component part (10) has a length in the y direction shorter than or equal to its length in the z direction and shorter than or equal to its length in the x direction. An envelope of the first optical component part (10) projected in an x-y plane forms essentially a rectangle. Proceeding from an x-y plane, the optical component part (10, 10') tapers in the z direction to maximum ~ of the largest width measured along y (By, max), with any design of the y-z flanks of the optical component part (10, 10').

L'invention concerne un dispositif optique et une pièce optique pour la restitution ciblée de lumière diffusée par des sources lumineuses de diodes électroluminescentes (6). Le dispositif optique comprend au moins deux pièces dont une est une première pièce optique (10) sous forme de corps solide conducteur de lumière, l'autre pièce servant à la liaison avec la source lumineuse de diodes électroluminescentes (6). Dans un système de coordonnées cartésiennes, la première pièce optique (10) a une extension longitudinale en direction y inférieure ou égale à l'extension longitudinale en direction z et inférieure ou égale à l'extension longitudinale en direction x. Une ligne enveloppante de la première pièce optique (10) projetée sur un plan x-y donne sensiblement un rectangle. A partir d'un plan x-y, la pièce optique (10, 10') diminue en direction z au maximum pour atteindre 1/4 de la plus grande largeur mesurée par y (By, max), les flancs y-z de la pièce optique (10, 10') ayant une forme quelconque.

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