LIGHT CONVERGING OPTICAL SYSTEM FOR CONVERGING LIGHT ONTO A REFLECTING OPTICAL-SPATIAL MODULATOR ELEMENT AND IMAGE DISPLAYING APPARATUS FOR DISPLAYING AN IMAGE FORMED BY LIGHT REFLECTED BY THE REFLECTING OPTICAL-SPATIAL MODULATOR ELEMENT

摘要

Lengths of both sides of each end plane of a light-intensity distribution uniformizing element receiving a light flux and having an F-number of 1 are set to of those of a reflecting surface of a reflecting optical-spatial modulator element, position information of uniformed light fluxes output from the light-intensity distribution uniformizing element is Fourier-transformed into diverging angle information indicated by incident light fluxes output from a first group of lenses, a relay deformed diaphragm intercepts an interference component of each incident light flux, which is expected to interfere with an outgoing light flux, to produce asymmetric light fluxes, the asymmetric light fluxes are incident on the reflecting optical-spatial modulator element, a projection lens deformed diaphragm removes stray light from outgoing light fluxes output from the reflecting optical-spatial modulator element, and an image is displayed according to the outgoing light fluxes.