Patent ID: 7744225

Claim:
A light source apparatus comprising: a first reflector having an inner reflective surface complementary to a part of an outer surface of an ellipsoid with a pair of focal points, the first reflector having a focal point within the inner surface thereof coinciding in position with one of the pair of focal points; and an array of light emitting elements disposed in a vicinity of the focal point within the inner surface of the first reflector; wherein light rays emitted by the light emitting elements of the array are reflected by the inner surface of the first reflector so as to be focused in a vicinity of a point coinciding in position with the other of the pair of focal points; and wherein one of: (i) a light emitting element of the array that has a lowest efficiency of light emission is disposed on a straight line that extends through the pair of focal points such that coloration of the light rays to be focused in the vicinity of the point coinciding in position with the other of the pair of focal points is given priority over brightness, and (ii) a light emitting element of the array that has a highest spectral luminous efficiency is disposed on the line that extends through the pair of focal points such that the brightness of the light rays to be focused in the vicinity of the point coinciding in position with the other of the pair of focal points is given priority over the coloration.