Holographic optical element
OwnerEdwina Margaret Orr, David John Traynerinventors
Life of this patent
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Abstract
A holographic optical element comprising at least two sets of regions, the regions of each set being different from the regions of the other set(s) and being interleaved or overlapping with the regions of the other set(s) and being constructed such that light incident on each set of regions is directed to a respective one of a plurality of viewing zones. The holographic optical element is typically incorporated in a display device such as a stereoscopic display device.
Claims18
A display device comprising a holographic optical element having at least two sets of hologram regions, a region or regions of the first set being interleaved or overlapping with an adjacent region or regions of the second set and being constructed such that light incident on each set of regions is diffracted so as to construct a respective one or more of a plurality of real or virtual images of a diffuse light source;
- and an image generator comprising a plurality of image elements;
- wherein the holographic optical element and its hologram regions are disposed and designed such that light having passed through a first set of image elements of the image generator is diffracted by the first set of hologram regions and such that light having passed through a second set of image elements of the image generator is diffracted by the second set of hologram regions.
Dependencies are inferred from the claim text.