Patent ID: 6030082
Filing Date: 2000-02-29
Classification: H04N

Abstract:
An illumination optical system for illuminating image display means which modulates incident light according to image information, said illumination optical system comprising a light source section; and an integrator section including at least two integrator plates, arranged in an optical axis direction of the light source section, for homogenizing the quantity of light emitted from said light source section;wherein an optical axis of said integrator section is set so as to be inclined with respect to a normal of a surface on which a luminous flux to said image display means is incident; andwherein the form of each device of a first integrator plate closest to said light source section in said integrator section is adjusted in a direction along which extends a line of intersection formed between said first integrator plate and a plane including an optical axis of said integrator section and the normal such that, when said luminous flux emitted from said integrator section illuminates said image display means, an illumination area formed by said luminous flux corresponds to the form of said image display means.