| 摘要 |
<p>The luminaire has side reflectors (2) having an edge (3) defining the width W of a light-emission window (1), and a plurality of lamellae (10), which have a concave outer edge (11) in the light-emission window (1) and an inner face (12) remote from that window (1). In their center, the lamellae have a distance h0 between the outer edge (11) and the inner face (12) that is according to the invention < 0.1 W. As a result, the total surface area of the inner face (12) is relatively small. Internal reflections are thereby reduced, and a higher light output is obtained. Also, if the lamellae (10) are solid and made of plastics, they have a smaller material content. This applies in particular if h0 < 0.05 W, because in that event the inner face (12) may be convex and even have the same contour as the outer edge (11). The lamellae louver has lamellae (10) of h0 < W, in which W is the length of the lamellae (10).</p> |
