| 摘要 |
<p>The projection display (100) of the present invention uses a light source (101), an optical system (102 to 108, 110, 113 and 113), a spatial light modulator (109) and a display screen (1410). In the preferred embodiment, the spatial light modulator (109) is in the form of a deformable mirror device having a plurality of individual cells (1012) whose deformation may be individually controlled. A Schlierin optical system (106) enables projection on the display screen of images of the individual deformable mirror cells (1012). The intensity of these screen images corresponds to the amount of deformation of the corresponding mirror cell. Color displays can be formed employing multiple deformable mirror devices (109, 117 and 122) with color filters (114, 118 and 123). A three-dimensional display can be formed by several methods which provide a slightly different display to the eyes of the observer. In the preferred embodiment, the deformable mirror device (109) includes a drive system (800) which automatically refreshs the individual deformable mirror cells thus reducing the need for data transmission to sustain the display. This drive requires data only for the sections of the display where alteration is desired.</p> |
