Lighting device for installation in plane surface

B - Operations – Transporting – 64 – F

Patent

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Details

B64F 1/18 (2006.01) F21S 8/00 (2006.01) F21V 5/02 (2006.01)

Patent

CA 2397696

The invention relates to a lighting device (100) for installation in a substantially plane surface (101), for example, the surface of a runway. The lighting device (100) comprises at least one lamp unit (8) that emits light essentially in a light direction which forms an angle a with an axis at right angles to the substantially plane surface. Furthermore, the lighting device (100) comprises at least one a light refracting means (1) having a longitudinal direction coincident with said light direction, an incident face substantially at right angles to the said light direction, and an exit face parallel to the substantially plane surface. The light refracting means is preferably a prism grating. The lighting means (100) is characterised in that the light refracting means (1) is supported by a supporting means (104) that extends along the whole of or a substantial part of the length of the light refracting means, and which preferably envelops the side faces of the light refracting means.

La présente invention concerne un dispositif d'éclairage (100) prévu pour être installé dans une surface (101) sensiblement plane, telle que par exemple, la surface d'une piste. Le dispositif d'éclairage (100) comprend au moins une unité (8) de lampe qui émet de la lumière principalement dans une direction qui forme un angle .alpha. avec un axe à angle droit par rapport à la surface plane. Le dispositif d'éclairage (100) comprend en outre au moins un système réfringent (1) dont la direction longitudinale coïncide avec la direction de la lumière, une face incidente située sensiblement à angle droit par rapport à la direction de la lumière et une face de sortie qui est parallèle à la surface sensiblement plane. Le système réfringent est de préférence un réseau de diffraction prismatique. Le dispositif d'éclairage (100) se caractérise en ce que le système réfringent (1) est supporté par un système (104) de support qui s'étend sur toute la longueur ou sur une partie de la longueur du système réfringent, et qui, de préférence, enveloppe les faces latérales du système réfringent.

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