Three dimensional projection systems based on switchable holographic optics
First Claim
1. A method comprising:
- sequentially displaying red, blue, and green color components of a first two-dimensional image, wherein the first two dimensional image represents a first slice of a three-dimensional image;
sequentially activating first, second and third switchable holographic optical elements (HOEs) as the red, blue, and green color component of the first two-dimensional image are displayed, wherein the activated first switchable HOE focuses the red color component of the first two-dimensional image onto a first image plane, wherein the activated second switchable HOE focuses the green color component of the first two-dimensional image onto the first image plane, and wherein the wherein the activated third switchable HOE focuses the blue color component of the first two-dimensional image onto the first image plane;
sequentially displaying red, blue, and green color components of a second two-dimensional image, wherein the second two dimensional image represents a second slice of the three-dimensional image;
activating a fourth switchable holographic optical element (HOE) as the red color component of the second two-dimensional image is displayed, wherein the activated fourth switchable HOE focuses the red color component of the second two-dimensional image onto a second image plane;
wherein the second image plane is adjacent to the first image plane.
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Abstract
Switchable holographic optical elements (HOEs) can used in systems and methods for projecting three-dimensional images, or for projecting two-dimensional tiled images with increased size and/or resolution. One of the methods may include sequentially displaying first, second, and third color components of a first two-dimensional image at an object plane. The first two dimensional image represents a first slice of a three-dimensional image. As the first, second, and third color components are displayed, first, second and third HOEs may be activated so that the activated first switchable HOE focuses the first color component of the first two-dimensional image onto a first image plane, the activated second switchable HOE focuses the second color component of the first two-dimensional image onto the first image plane, and the wherein the activated third switchable HOE focuses the third color component of the first two-dimensional image onto the first image plane. It is noted that the first, second, and third HOEs may be activated concurrently or sequentially with the display of the first, second, or third color components of the first two-dimensional image. After the first, second, and third color components are displayed, the first, second and third switchable HOEs are deactivated. Then, first, second, and third color components of a second two-dimensional image are sequentially displayed. The second two-dimensional image represents a second slice of the three-dimensional image. A fourth switchable HOE may be activated to focus the first color component of the second two-dimensional image onto a second image plane. The second image plane is adjacent to the first image plane.
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Citations
26 Claims
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1. A method comprising:
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sequentially displaying red, blue, and green color components of a first two-dimensional image, wherein the first two dimensional image represents a first slice of a three-dimensional image;
sequentially activating first, second and third switchable holographic optical elements (HOEs) as the red, blue, and green color component of the first two-dimensional image are displayed, wherein the activated first switchable HOE focuses the red color component of the first two-dimensional image onto a first image plane, wherein the activated second switchable HOE focuses the green color component of the first two-dimensional image onto the first image plane, and wherein the wherein the activated third switchable HOE focuses the blue color component of the first two-dimensional image onto the first image plane;
sequentially displaying red, blue, and green color components of a second two-dimensional image, wherein the second two dimensional image represents a second slice of the three-dimensional image;
activating a fourth switchable holographic optical element (HOE) as the red color component of the second two-dimensional image is displayed, wherein the activated fourth switchable HOE focuses the red color component of the second two-dimensional image onto a second image plane;
wherein the second image plane is adjacent to the first image plane.
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2. A method comprising:
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(a) sequentially displaying first, second, and third color components of a first two-dimensional image, wherein the first two dimensional image represents a first slice of a three-dimensional image;
(b) activating first, second and third switchable holographic optical elements (HOEs), wherein the activated first switchable HOE focuses the first color component of the first two-dimensional image onto a first image plane, wherein the activated second switchable HOE focuses the second color component of the first two-dimensional image onto the first image plane, and wherein the wherein the activated third switchable HOE focuses the third color component of the first two-dimensional image onto the first image plane;
(c) deactivating the first, second and third switchable HOEs;
(d) sequentially displaying first, second, and third color components of a second two-dimensional image, wherein the second two dimensional image represents a second slice of the three-dimensional image;
(e) activating a fourth switchable holographic optical element (HOE), wherein the activated fourth switchable HOE focuses the first color component of the second two-dimensional image onto a second image plane;
wherein the second image plane is adjacent to the first image plane. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
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11. A three-dimensional projection system comprising:
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a two-dimensional display configured to sequentially display a series of cross-sections of a three-dimensional image;
a switchable holographic optical system configured to focus said two-dimensional display onto a sequence of image planes at a plurality of distances from said two-dimensional display, wherein the switchable holographic optical system is optically positioned between the two-dimensional display and the image planes. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification