| 摘要 |
The invention concerns a system enabling projection of a digital video image sequence, on a screen with different size and shape, by the mean of a light beam which can be generated by a source (1), of low/medium power laser type or of white light type, oriented by a 3D's ball-joint (2). The system contains a rotary disc micro-shutter (4) with slots (3), two optical rotary discs (5) and (7) digitally controlled on an axis (12) with 3D's ball-joints (6), generating the vertical and horizontal beam sweeping onto the screen, ended by a rectangular shutter (8). The display is realized by successive reflections of the light beam on reflective microscopic facets, covered with a thin metallic coat, and distributed on the discs surface (5) and (7). The surface of each facet is oriented with a reflective angle incremented according to an angular increment which depends on the aimed application. The reflective angle applied to the light beam by each facets, depends on: 1) the type of optical rotary disc: vertical (5) or horizontal (7), 2) the rotation speed, and 3) the position of each facet on the disc, which is function of: 1) the zone: red (9), green (10) or blue (11), the sector and the determined increment, at a given <<t>> time. The system will be applied to high end Digital Cinema supporting Ultra High Definition. |
