| 摘要 |
<p>An illuminating optical system and a projector, which effectively use light from a light source by reflecting it by an elliptical reflector and passing it through cell lenses of first and second lens arrays. In the illuminating optical system, at least light rays (80, 81), out of the reflected light reflected by an elliptical reflector (30), traveling along and near the light source optical axis (20ax) are made to pass through cell lenses in the first lens array and the second lens array, like the light rays (80a, 81a) shown, and to travel on diverging optical paths off the optical axis (20ax).</p> |
