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US 6,305,824 B1Granted
Luminaire with lamellae having a gradual change in their profiles
AssigneeU.S. Philips Corporation
InventorPetrus A. J. Holten
Life of this patent
Estimating the term…
Abstract
The luminaire comprises several flat, light-diffusing lamellae (10) between reflectors (1) which each comprise an edge (2) in a light emission window (3). Each lamella has lateral edges (100), an outer edge (12), an inner edge (11), and a relief (101). The relief (101) of the lamella (10) decreases in a direction towards the lateral edges (100), hence avoiding non-uniform light reflections (zebra patterns) of the lamellae (10) on the reflectors (1).
Claims7
A luminaire comprising:
- reflectors (1) which are situated mutually substantially parallel opposite one another and whose edges (2) at one side define a light emission window (3);
- means (4) for holding an electric lamp (e.l.) between the reflectors (1);
- a plurality of light-scattering lamellae (10) between the reflectors (1), transverse to the reflectors (1) and to the light emission window (3), which lamellae (10) are provided each with a lateral edge (100), an inner edge (11), an outer edge (12) in the light emission window(3), and a relief (101), characterized in that the lamella (10) has a relief (101) which decreases in a direction towards the lateral edge (100).
Dependencies are inferred from the claim text.