Backprojection transparency viewer
First Claim
Patent Images
1. A viewbox comprising:
- a faceplate adapted for mounting a transparency thereon;
a light modulator comprising a plurality of light valves which modulates light to fom a light pattern; and
a projector which back-projects the modulated light pattern on the faceplate, such that the faceplate is back-lighted with a scaled version of the light pattern, wherein the plurality of light valves comprise a reflective LCA.
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Abstract
A viewbox comprising: a faceplate adapted for mounting a transparency thereon; a light modulator comprising a plurality of light valves which modulates light to form a light pattern; and a projector which projects the modulated light pattern onto the back of the faceplate, such that the faceplate is back-lighted with a scaled version of the light pattern, wherein each light-valve of said plurality of light-valves corresponds to a pixel in the light pattern and wherein neighboring pixels have an overlap of at least 30%.
36 Citations
10 Claims
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1. A viewbox comprising:
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a faceplate adapted for mounting a transparency thereon;
a light modulator comprising a plurality of light valves which modulates light to fom a light pattern; and
a projector which back-projects the modulated light pattern on the faceplate, such that the faceplate is back-lighted with a scaled version of the light pattern, wherein the plurality of light valves comprise a reflective LCA. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification