| 摘要 |
PCT No. PCT/FR91/00952 Sec. 371 Date May 27, 1993 Sec. 102(e) Date May 27, 1993 PCT Filed Nov. 29, 1990 PCT Pub. No. WO92/09918 PCT Pub. Date Jun. 11, 1992.Back-projection display system including a screen which can be moved away from or, conversely, placed up against a support such as a wall, for example. A projector located at some distance away, on the ceiling for example, illuminates a back-projection mirror located at 45 DEG in relation to the illumination beam and in relation to the screen. The back-projection mirror itself is also articulated. In addition, the mirror may be made in the form of a holographic mirror.
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