Holographic display with switchable aspect ratio
First Claim
1. A holographic display system comprising a left optical system and a right optical system, each optical system comprising:
- an image display operable to display an input image;
a first holographic device operable to project the input image to at least partially overlap with the input image projected from the other of the left and right optical systems to form a first resultant image with a first aspect ratio; and
a second holographic device operable to project the input image to at least partially overlap with the input image projected from the other of the left and right optical systems to form a second resultant image with a second aspect ratio, different from said first aspect ratio.
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Abstract
A holographic display system comprising left and right optical systems is disclosed. The optical systems each comprise an image display operable to display an input image and first and second holographic devices. The first holographic device is operable to project the input image to overlap with the input image projected from the other of the left and right optical systems to form a resultant image with a first aspect ratio. The second holographic device is operable to project the input image to overlap with the input image projected from the other of the left and right optical systems to form a resultant image with a second aspect ratio, different from the first aspect ratio. A method of changing the aspect ratio of an image is also disclosed.
88 Citations
20 Claims
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1. A holographic display system comprising a left optical system and a right optical system, each optical system comprising:
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an image display operable to display an input image; a first holographic device operable to project the input image to at least partially overlap with the input image projected from the other of the left and right optical systems to form a first resultant image with a first aspect ratio; and a second holographic device operable to project the input image to at least partially overlap with the input image projected from the other of the left and right optical systems to form a second resultant image with a second aspect ratio, different from said first aspect ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of changing an aspect ratio in a display system comprising a first holographic system operable to display an image with a first aspect ratio and a second holographic system operable to display the image with a second aspect ratio different from said first aspect ratio, the method comprising:
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switching on the first holographic system so that the holographic system diffracts light passing therethrough to form an image with said first aspect ratio; and switching off the second holographic system so that the holographic system allows light to pass therethrough without diffraction of the light. - View Dependent Claims (17, 18, 19, 20)
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Specification