| 主权项 |
1. A wide angle illumination assembly comprising:
a reflector comprising a multifaceted reflective surface that defines an convex arcuate configuration in a predetermined plane; wherein the multifaceted reflective surface is formed by multiple reflective portions, the multiple reflective portions comprise a first facet that has a concave parabolic topology, wherein the first facet has a concave surface in a plane parallel to the predetermined plan and in a plane perpendicular to the predetermined plane, and a second facet that has a convex parabolic topology, where in the second facet has a convex surface in a plane parallel to the predetermined plane and a concave surface in a plane perpendicular to the predetermined plane, and the first and second facets are defined by a common parabolic curve, wherein the first and second facets are joined to each other at a common meeting point along the common parabolic curve; and a plurality of LEDs positioned with respect to the multifaceted reflective surface to emit light onto the multifaceted reflective surface; whereby the multifaceted reflective surface is configured and the LEDs are so positioned with respect to the multifaceted reflective surface so that the light emitted from the reflector has a substantially uniform luminous intensity in a narrow band through an arc of at least 90° of the reflector in the predetermined plane with a maximum deviation of 25%. |
