VISION CORRECTION SYSTEM AND METHOD, AND LIGHT FIELD DISPLAY AND BARRIER THEREFOR
First Claim
1. A digital display device for use by a user having reduced visual acuity, the device comprising:
- a digital display medium comprising an array of pixels and configured to render a pixelated image;
a diffractive light field barrier overlaying said digital display at a distance therefrom and including an array of diffractive optical elements, wherein each one of said diffractive optical elements includes a concentrically patterned barrier centered over a corresponding set of said pixels to diffractively influence a light field emanating therefrom and thereby govern a projection thereof from said display medium toward the user; and
a hardware processor configured to process image pixel data for an image to be displayed to output corrected image pixel data to be rendered as a function of a stored characteristic of said diffractive light field barrier and a selected vision correction parameter related to the user'"'"'s reduced visual acuity such that said processed image is rendered via said light field barrier to at least partially compensate for the user'"'"'s reduced visual acuity.
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Abstract
Described are various embodiments of a digital display device for use by a user having reduced visual acuity. In one embodiment, a digital display device includes: a digital display medium including an array of pixels and operable to render a pixelated image; a diffractive light field barrier overlaying said digital display at a distance therefrom and defined by an array of diffractive optical elements, each of said diffractive optical elements defined by a concentrically patterned barrier centered over a corresponding set of said pixels to diffractively influence a light field emanating therefrom and thereby govern a projection thereof from said display medium toward the user; and a hardware processor operable to output corrected image pixel data to be rendered as a function of a stored characteristic of said diffractive light field barrier and a selected vision correction parameter related to the user'"'"'s reduced visual acuity.
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Citations
19 Claims
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1. A digital display device for use by a user having reduced visual acuity, the device comprising:
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a digital display medium comprising an array of pixels and configured to render a pixelated image; a diffractive light field barrier overlaying said digital display at a distance therefrom and including an array of diffractive optical elements, wherein each one of said diffractive optical elements includes a concentrically patterned barrier centered over a corresponding set of said pixels to diffractively influence a light field emanating therefrom and thereby govern a projection thereof from said display medium toward the user; and a hardware processor configured to process image pixel data for an image to be displayed to output corrected image pixel data to be rendered as a function of a stored characteristic of said diffractive light field barrier and a selected vision correction parameter related to the user'"'"'s reduced visual acuity such that said processed image is rendered via said light field barrier to at least partially compensate for the user'"'"'s reduced visual acuity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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- 12. A diffractive light field barrier for use with a display medium comprising an array of pixels and configured to render a pixelated image to be viewed by a viewer having a reduced visual acuity, wherein the diffractive light field barrier is dimensioned to overlay the digital display medium at a distance therefrom and comprises an array of diffractive optical elements, each one of which being including a concentrically patterned barrier that, when overlaid onto the digital display medium, is centered over a corresponding set of the pixels to diffractively influence a light field emanating therefrom and thereby govern a projection thereof from the display medium toward the user such that an image can be processed and rendered via the light field barrier to at least partially compensate for the viewer'"'"'s reduced visual acuity.
Specification