Microsoft Corporation
Illumination device having reflector with concave and convex symmetrical surfaces

Abstract:

An illumination device including a light source and a reflector with a pair of vertically opposed symmetrical reflective surfaces and a pair of horizontally opposed symmetrical reflective surfaces. Each of the vertically and horizontally opposed symmetrical reflective surfaces includes a concave region positioned proximate a light source, and a convex region positioned distal the light source. The pairs of vertically opposed symmetrical reflective surfaces and horizontally opposed symmetrical reflective surfaces of the reflector redistribute light emitted from the light source such that the illumination device outputs a field of illumination having a substantially uniform intensity of light.