| 摘要 |
<p>In a polarized light illumination apparatus 1, randomly polarized lights emitted from first and second light sources 101 and 102 are respectively separated by a polarized light separating and combining element 201 into two different types of polarized lights. Secondary light source images are formed at locations shifted from each other in an x direction whereby polarization is aligned in the same single direction. At least two condensing mirror plates of first to third condensing mirror plates 301, 302, and 303 are parallely shifted from the center axis of the polarized light separating and combining optical element 201 so that secondary light source images formed by z-polarized lights (polarized in a z direction) emitted from the first and second light sources are superimposed upon each other and secondary light source images formed by x-polarized lights (polarized in an x direction) emitted from the first and second light sources are superimposed upon each other. Thus, even though a plurality of light sources are used, the polarized light illumination apparatus can provide high-intensity illumination light using both polarization components without causing an increase in the illumination angle. <IMAGE></p> |
