Luminaire reflector having improved prism transition
AssigneeABL IP Holding LLC
InventorYaser Abdelsamed
Life of this patent
Estimating the term…
Abstract
A reflector (14) for a luminaire comprises a generally parabolic wall (28) having series of main right-angled prisms (16) and an interleaved series of transition prisms (18). The main and transition prisms have essentially the same shapes and follow the same overall curvature to control the illumination. The transition prisms transition into the main prisms by merging a peak of a transition prism into the valley between adjacent main prisms in a short transition zone (20). Thus, the transition zone has only a small effect on the overall lighting pattern.
Claims14
A reflector for a luminaire comprising a shaped wall having a plurality of longitudinal main reflecting prisms and a plurality of transition reflecting prisms interleaved with said main reflecting prisms wherein the peak of each transition prism transitions into the valley of a respective main prism in a transition zone that is significantly shorter than the length of said main prism.
A method of making a reflector comprising the steps of providing a shaped wall, forming in said shaped wall a first set of main prisms extending along substantially the entire length of said mold, forming in said shaped wall a set of transition prisms similar in shape to said main prisms and interleaved with said main prisms, said transition prisms extending along less than the length of said shaped wall, and forming in said shaped wall a transition zone contiguous with said transition prisms, the length of said transition zone being substantially less than the length of said second set of linear prisms.
Dependencies are inferred from the claim text.