Patent ID: 7314289

Claim:
A luminaire comprising: a plurality of sources fixedly arranged in a plurality of positions and comprising at least one electroluminescent diode, the at least one electroluminescent diode including three chips within one housing, each chip for emitting a primary color and being independently controllable so as to cause light emitted by the electroluminescent diode to assume any possible color through a combination of primary colors; an optical system comprising a cylinder having a focal surface that is at a fixed position with respect to said plurality of sources, the plurality of sources being located on a circle that is concentric to the cylinder, and wherein the optical system is further adapted to enable light from said sources entering the optical system via the focal surface to be focused into an output beam, wherein focusing for each source of said plurality of sources is different in dependence on the fixed position of a respective source relative to the focal surface of the optical system; and electronic control means designed for controlling the plurality of sources and capable of controlling intensities of light from said plurality of sources (i) independently of one another and (ii) as a function of their respective positions relative to the focal surface of said optical system so as to (iii) accurately shape and orient the output beam with a photometric distribution which is controllable in time and in space at the output of said optical system.