| 摘要 |
A projection television (10) is provided comprising at least three image projectors (14, 16, 18) for projecting respective images of different colors onto a holographic projection screen (22). One (16) of the projectors has a first, shortest optical path (32) disposed in a substantially orthogonal orientation with the holographic projection screen (22) and at least two (14, 18) of the projectors are disposed in adjacent, stepped-relation to one another and have respective optical paths (34, 36) that are (i) selectively defined by the stepped- relation of the projectors (14, 16, 18), and (ii) converge toward the first optical path (32) in a non-orthogonal orientations so as to define angles of incidence corrsponding to a lowest level chromatic aberration of the images by the holographic projection screen (22). The projection screen (22) is formed by a three-dimensional hologram (26) representing a three- dimensional arry of lenticular elements disposed on a substrate (24). The screen (22) receives images from the projectors (14, 16, 18) on a first side and displays the images on a second side with controlled light dispersion of all the displayed images.
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