| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a duplication suppression projector for projection of digital animation images onto a display screen, in which a disturbance generator can obscure one or a plurality of colors of illumination in terms of time or space. <P>SOLUTION: A copying protect system (1) includes a multicolor light source (20), a uniformization optical element (22) for uniformizing the light from the multicolor light source so as to supply a uniform illumination visual field, a condenser relay optical element, a dichroic optical element, an illumination relay optical element (82), a spatial optical modulator (30), and a modulation element installed on a surface existing in the optical path between the multicolor light source and the spatial optical modulator. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
