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US 2007/0177113 A1Published application
Digital image projection methods and apparatus thereof
AssigneeTexas Instruments Incorporated
InventorAndrew Huibers
Life of this patent
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Abstract
Disclosed herein is a method of projecting images using light valves. Pixel patterns generated of the light valve pixels based on image data are projected at different locations at a time.
Claims32
A method for shifting an image on a target, comprising:
- directing light from a light source onto a light valve comprising an array of pixels;
- modulating the light from the light source with the light valve pixels;
- forming the image with the modulated light from the light valve on the target with a projection lens;
- moving the projection lens so as to shift the formed image on the target.
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A projection system, comprising:
- a light source for providing light to a light valve;
- a light valve with a plurality of light valve elements for spatially modulating light from the light source;
- a projection lens through which light from the light valve passes;
- and
- a piezoelectric actuator provided for moving the projection lens.
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A projection system, comprising:
- a light source for providing light onto a light valve;
- a light valve having individual light valve elements which reflect or transmit light to a screen;
- means for vibrating the light valve so as to shift the pixel images from the light valve elements on the screen.
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Dependencies are inferred from the claim text.