Luminaire

Details Luminaire Luminaire

F - Mech Eng,Light,Heat,Weapons

21

V

F21V 11/02 (2006.01)

Patent

CA 2187776

The luminaire has a housing (I) with a light emission window (2), means (3) for accommodating a tubular lamp (4) in it along the window (2) and in a plane P perpendicular to said window, side reflectors (5), and three-dimensional lamellae (10) which each have an outer (11) edge and an inner edges (12). The outer edge (11) of each lamella (10) is concave. The luminaire thus has an optimized cut-off angle, screening light which would otherwise be dazzling, but permitting non-dazzling light to pass. The lamellae have a concave curvature parallel to plane P which flattens out from plane P towards the side-reflectors (5), thereby enlarging the aperture through which light emanates and making the illumination by the luminaire more uniform.

Un luminaire comprend un boîtier (1) à fenêtre d'émission lumineuse (2), un dispositif (3) pouvant recevoir une lampe tubulaire (4) disposée le long de cette fenêtre (2) et dans un plan P perpendiculaire à ladite fenêtre, des réflecteurs latéraux (5), et des lamelles tridimensionnelles (10) qui présentent chacune un bord externe (11) et des bords internes (12). Le bord externe (11) de chaque lamelle (10) est concave. Ce luminaire présente ainsi un angle de défilement optimisé et il filtre la lumière qui, autrement, serait aveuglante, mais il laisse passer la lumière non aveuglante. Ces lamelles présentent une courbure concave parallèle au plan P, qui s'aplatit depuis ce plan P vers les réflecteurs latéraux (5), ce qui agrandit l'ouverture laissant passer la lumière et rend plus uniforme l'éclairage procuré par ce luminaire.

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