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US 5,963,276 AGranted
Back projection transparency viewer with overlapping pixels
AssigneeSmartlight Ltd.
InventorDan Inbar
Life of this patent
Estimating the term…
Abstract
A method of transparency viewing, including, placing the transparency at a viewing surface, forming a light pattern and projecting the light pattern to back-illuminate the transparency. Preferably, the light pattern is formed by spatially modulating a beam of light using a plurality of light-valves.
Claims12
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%.
2 more elements
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, 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%;
- and
- a projector which back-projects the modulated light pattern of the faceplate, such that the faceplate is backlighted with a scaled version of the light pattern,
- wherein the plurality of light-valves comprise a reflective LCA.
2 more elements
Dependencies are inferred from the claim text.