Patent ID: 8023783
Filing Date: 2011-09-20
Classification: G02B

Abstract:
1. An image display device comprising: a light source; a reflection spatial optical modulator to reflect a pencil of rays emitted from the light source; a reflection optical element to reflect the reflected light from the reflection spatial optical modulator; an optical lens to refract the reflected light from the reflection optical element; a quarter waveplate; a polarizing beam splitter; and a light-guiding optical system, the optical lens projecting the reflected light from an arbitrary position on the reflecting surface of the reflection spatial modulator as parallel pencil groups; the light-guiding optical system totally reflecting the parallel pencil groups inside it and then projecting it as they are; the light source, reflection spatial optical modulator, reflection optical element and optical lens being disposed near or in close contact with four optical surfaces, respectively, of the polarizing beam splitter; and the quarter waveplate being disposed between the reflection optical element and polarizing beam splitter.