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US 6,672,722 B2Granted
Projection engine
AssigneeIntel Corporation
InventorsMichael O'Connor, Kenneth E. Salsman, Serge Rutman
Life of this patent
Estimating the term…
Abstract
A projection engine having a first kernel for modulating light of a first polarization, and a second kernel for modulating light of a second polarization, and a polarization combiner for merging light from the kernels into a dual polarization modulated output beam.
Claims30
An apparatus comprising:
- a polarization separator;
- a first polarization beam splitter optically coupled to a first output light path of the polarization separator;
- M≧1 first spatial light modulators optically coupled to the first polarization beam splitter to modulate light of N≧1 colors of a first color space;
- a second polarization beam splitter optically coupled to a second output light path of the polarization separator;
- P≧1 second spatial light modulators optically coupled to the second polarization beam splitter to receive light of Q≧1 colors of a second color space;
- and
- a polarization combiner optically coupled to the first and second polarization beam splitters.
4 more elements
An apparatus comprising:
- a first light engine kernel to insert content in each of three colors in a first color space;
- a second light engine kernel to insert content in each of three colors in a second color space;
- and
- a combiner optically coupled to outputs of the first and second light engine kernels.
1 more element
An apparatus to receive input light and to provide output light, the apparatus comprising:
- means for spatially substantially separating the input light into first light having a first polarization and second light having a second polarization different than the first polarization;
- first means for inserting content into the first light, the first means for inserting including means for switching at least two color components of the first light, wherein the means for switching comprises a three-color switch;
- second means for inserting content into the second light, the second means for inserting including means for switching at least two color components of the second light;
- and
- means for combining the content-inserted first and second light to create the output light.
2 more elements
An apparatus to generate a light beam containing at least two 2-D images of a composite 3-D image, the apparatus comprising:
- a first switched light engine kernel to provide first light, the first light having a first polarization and containing content representing a first of the 2-D images;
- a second switched light engine kernel to provide second light, the second light having a second polarization and containing content representing a second of the 2-D images, wherein the second polarization is different than the first polarization;
- and
- a polarization combiner to combine the first light and second light to create the light beam.
1 more element
An apparatus comprising:
- a first plate polarizer to receive light from a light source, and substantially separate the light into first polarization light and second polarization light, and to substantially reflect one of and transmit an other of the first polarization light and the second polarization light;
- a first color switch optically coupled to receive one (Lx) of the first polarization light and the second polarization light from the first plate polarizer;
- a first polarization beam splitter optically coupled to receive switched light from the first color switch;
- a first single spatial light modulator optically coupled to receive and modulate switched light from the first polarization beam splitter, and reflect the modulated switched light back to the first polarization beam splitter;
- a second color switch optically coupled to receive an other (Ly) of the first polarization light and the second polarization light from the first plate polarizer;
- a second polarization beam splitter optically coupled to receive switched light from the second color switch;
- a second single spatial light modulator optically coupled to receive and modulate switched light from the second polarization beam splitter, and reflect the modulated switched light back to the second polarization beam splitter;
- and
- a second plate polarizer optically coupled to receive modulated light from the first polarization beam splitter and modulated light from the second polarization beam splitter and combine the modulated lights into an output beam.
6 more elements
Dependencies are inferred from the claim text.