Luminaire for elongate lamp
AssigneeGebr. Ludwig GmbH
InventorChristian Bartenbach
Life of this patent
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Abstract
A luminaire for an elongate lamp has longitudinal reflectors running parallel to the lamp and a multiplicity of spaced-apart transverse lamellae. The lamellae have a bottom, tapering region with a bottom edge that is curved. The cross-section of the bottom, tapering region is of the same shape over the width of the transverse lamellae. The edges of the bottom tapering region have the same curvature, with the lower edge coinciding with the bottom edge of the transverse lamellae.
Claims11
A luminaire for an elongate lamp with a long axis, comprising:
- reflectors arranged parallel to the long axis of the lamp for reflecting light from the lamp;
- a plurality of lamellae arranged traverse to the long axis of the lamp to distribute light from the lamp, at least one of the lamellae having a first tapered surface tapering in a direction away from the long axis of the lamp and extending along the at least one lamella transverse to the long axis, the first tapered surface tapering to a concavely curved free edge of the at least one lamella, which is curved around an axis parallel to the long axis;
- and
- the first tapered surface having a curved upper border spaced from the free edge of the at least one lamella, wherein the upper border and the free edge have a curvature that is the same, such that a cross-section of the first tapered surface taken parallel to the long axis of the limp is the same size and shape everywhere along the length of the at least one lamella in a direction transverse to the long axis.
A lamella for a luminaire housing an elongate lamp with a long axis, the lamella being arranged transversely to the long axis and comprising:
- a first tapered surface tapering in a direction away from the long axis of the lamp and extending along the lamella transverse to the long axis, the first tapered surface tapering to a concavely curved free edge of the lamella, which is curved around an axis parallel to the long axis;
- and
- the first tapered surface having a curved upper border spaced from the free edge of the lamella, wherein the upper border and the free edge have a curvature that is the same, such that a cross-section of the first tapered surface taken parallel to the long axis of the lamp is the same size and shape everywhere along the length of the lamella transverse to the long axis.
Dependencies are inferred from the claim text.