Patent ID: 6631997
Filing Date: 2003-10-14
Classification: G02B,H04N

Abstract:
A light-source device comprising:a first lens unit for condensing light emitted by a lamp; a rod integrator having an injection end and an emitting end, the injection end being disposed in the vicinity of a convergence point of the light condensesd by the first lens, the rod integrator forming a plurality of imaginary light-source points each of which virtually emits the luminous flux to the emitting end a second lens unit for forming the images of the imaginary light source points and a diaphragm being disposed in the vicinity of a plane on which the images of the imaginary light-source points are formed, the diaphragm having an aperture which is shaped so that the diaphragm selectively blocks an image of an imaginary light-source point emitting undesirable light components.