Patent ID: 6966656
Filing Date: 2005-11-22
Classification: H04N

Abstract:
1. A projection-type image display apparatus including an illuminator having a light source, an optical modulator illuminated by light from the illuminator and which makes spatial modulation of the illumination light according to a to-be-displayed image for either transmission or reflection, and a projection lens to form an image of the optical modulator, the apparatus comprising: a fly-eye integrator positioned between the light source and the optical modulator, the fly-eye integrator including a first fly-eye lens and a second fly eye lens; a polarized state converter positioned between the fly-eye integrator and the optical modulator; a condenser lens group positioned between the polarized state converter and the optical modulator, the condenser lens group including a condenser lens and a field lens; and a first reflecting element positioned between the condenser lens group and the optical modulator to reflect, towards the light source, unwanted light of a light beam emitted from the illuminator and that will not illuminate the optical modulator.