摘要 |
The invention relates to the field of three-D images (stereoscopy). The projection of stereoscopic pairs onto a screen, requiring selection of each right-hand or left-hand image towards the corresponding eye, leads, in the case of optical selection by a prismatic lenticular screen, to the requirement of imposing on the observer particular and narrowly limited positions, linked with the orientation of the two light beams (29) and (30) directed towards the screen. The invention resorts, in addition to these main beams, to additional beams such as (36) and (37), with different angles, created by partially reflecting mirrors (32) and (34), increasing the overall usable angle of observation. The applications are, in particular, those of presenting stereoscopic shows in fixed or animated images. <IMAGE>
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