Patent ID: 7106518
Filing Date: 2006-09-12
Classification: G02B,G03B,H04N

Abstract:
1. An image display apparatus, comprising: a light source unit having at least part of a reflection mirror; a first array lens, being constructed with plural numbers of condenser lenses, for forming plural numbers of secondary light source images through condensing a light emitted from said light source unit; a second array lens, being constructed with plural numbers of condenser lenses, and being disposed in vicinity where said secondary light source images are formed; a lighting optic system having a function of irradiating the light emitted from said light source unit upon a surface to be irradiated; an image display element for modulating the light; a polarized light beam splitting unit, having a first polarized light beam splitter and a second polarized light beam splitter, corresponding to respective half areas when said second array lens is equally divided horizontally or vertically, while providing a gap at a central portion therebetween, and also light shielding members, being provided on surfaces of said first and second polarized light beam splitters, opposing said second array lens, and being provided in light reflecting portions thereof, wherein said second polarized light beam splitter is so disposed that said first polarized light beam splitter is rotated by 180° around an optical axis thereof; and a projection lens for projecting the light emitted from said image display element.