LUMINAIRE WITH A REFLECTOR AND LEDS

摘要

A light source includes an array (40) of LED components (10), (20), (30) in each of a plurality of colors such as red, green, and blue in the entrance aperture (5) of a tubular reflector (1) which has an exit aperture (6), an optic axis (z) extending between the apertures, and a reflective circumferential wall extending between the apertures to reflect and mix light from the array of LED components. At least a portion of the circumferential wall of the reflector body has a polygonal cross-section taken normal to the optic axis, and at least a portion of the cross-section taken parallel to the optic axis includes segments of a curve joined one to the next to form a plurality of facets (50) for reflecting light from the LED components to said exit aperture (6). Preferably, the segments of the curve included in the cross-section of the reflector body taken parallel to the optic axis are contiguous, linear trapezoidal facets (50).