Patent ID: 6286979
Filing Date: 2001-09-11
Classification: F21S,F21V

Abstract:
A lighting system, comprising:a diffusely reflective optical-integrating cavity;a source coupled to emit light into the cavity;an elongated port extending along a portion of a perimeter of the cavity, for providing a passage for light from within the cavity;a first reflector mounted along the portion of the perimeter of the cavity, the first reflector having a reflective surface extending at a first angle from a first elongated edge of the port toward a region to be illuminated;a second reflector mounted along the portion of the perimeter of the cavity, the second reflector having a reflective surface extending at a second angle from a second elongated edge of the port toward the region to be illuminated;the reflective surfaces of the first and second reflectors forming a fan-shaped deflector coupled to the port and expanding outward as the reflective surfaces extend from the edges of the port toward the region to be illuminated, for directing the light from within the cavity over the region to be illuminated.