| 摘要 |
<p>A lens distributing light from an emitter having an axis and defining an emitter plane, an outer surface including output regions each configured for refracting light from a corresponding one of the inner regions such that at the outer surface light from each inner region refracts substantially without overlapping light from the other inner regions, and including an emitter-adjacent base end forming an opening to an inner cavity surrounding the emitter. An inner-cavity surface includes an axis-adjacent first inner region refracting emitter light away from the axis, a second inner region spaced from the first inner region and refracting emitter light toward the axis, and a middle inner region joining and substantially cross-sectionally asymptotical to the first and second inner regions. The middle inner region positioned with respect to the emitter refracts light away from the axis by progressively lesser amounts at positions progressively closer to the second inner region.</p> |
