| 摘要 |
<p>Exemplary embodiments of the invention provide a projector that can readily correct for chromatic aberration caused by, for example, a projecting lens without having to give a cross dichroic prism, for example, a special preliminary process. Illumination-light components modulated by corresponding liquid-crystal light valves are synthesized in a cross dichroic prism ( 27 ) to form image light. The image light enters a projecting lens ( 29 ) from which the image light is projected onto a screen, which is not shown in the drawings. In the cross dichroic prism ( 27 ) used to synthesize light components, a first prism element (P 1 ) has a refractive index higher than that of remaining prism elements (P 2, P 3 and P 4 ). This allows a width of a red projection-image component to be made larger than widths of projection-image components of remaining colors, whereby the chromatic aberration in the projecting lens can be readily corrected.</p> |
