| 摘要 |
Projection carrier, for example made from plastic (see Patent Claims 1-6), preferably suitable for three-dimensional and two-dimensional back projections (slide, film, video, laser), which due to its optimum optical properties renders it possible for the first time to reproduce back projections perfectly in the three-dimensional image region, but which also, by virtue of the above-named properties, is better suited for the two-dimensional image region and for such reproduction than all the other back projection materials known to us.
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