| 摘要 |
A fixture device for luminous tubes, preferably of the ceiling-mounted kind, is equipped with a new type of transverse lamellas or fins (6) on the underside for shielding and distribution of the light from said fixture. The transverse fins (6) are constructed as pairs of single fins, with a mirror symmetrical design about a center plane for each pair. The distance between two single fins (6) in one pair is smaller than the distance from a single fin to the nearest single fin in the adjacent pair. The fins (6) are preferably equipped with outer reflection surfaces (7) with parabolic curvature, and the inner reflection surfaces in a pair are divided in two areas in such a manner that the lower area (9) of the inner reflection surface has the same curvature type as the outer reflection surface (7). |
