Fully integrated pinhole camera for eye-mountable imaging system
First Claim
1. An eye-mountable device comprising:
- a transparent polymeric material that can be removably mounted over a corneal surface;
a substrate at least partially embedded in the transparent polymeric material; and
an image sensor disposed on the substrate, wherein the image sensor includes;
(i) an opaque screen including a non-focusing aperture, and (ii) a photo-sensitive area occupied by a plurality of photo-sensitive elements, wherein the plurality of photo-sensitive elements includes a first photo-sensitive element located closer to the non-focusing aperture than a second photo-sensitive element, and wherein the first photo-sensitive element occupies less of the photo-sensitive area than the second photo-sensitive element, wherein the non-focusing aperture is smaller than the photo-sensitive area, and wherein each of the photo-sensitive elements receives unfocused light entering the non-focusing aperture from a respective direction.
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Accused Products
Abstract
An eye-mountable device includes an image sensor situated in a polymeric material configured to be mounted to a surface of an eye. The image sensor can be disposed on a substrate at least partially embedded in the polymeric material. The image sensor can include a photo-sensitive area occupied by a plurality of photo-sensitive elements. The photo-sensitive area is illuminated by light entering a non-focusing aperture in an opaque screen. The non-focusing aperture can be smaller than the photo-sensitive area such that each of the photo-sensitive elements receives light entering the non-focusing aperture from a respective direction. The direction-specific measurements of received light obtained by the multiple photo-sensitive elements can thereby be used to form an image.
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Citations
17 Claims
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1. An eye-mountable device comprising:
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a transparent polymeric material that can be removably mounted over a corneal surface; a substrate at least partially embedded in the transparent polymeric material; and an image sensor disposed on the substrate, wherein the image sensor includes;
(i) an opaque screen including a non-focusing aperture, and (ii) a photo-sensitive area occupied by a plurality of photo-sensitive elements, wherein the plurality of photo-sensitive elements includes a first photo-sensitive element located closer to the non-focusing aperture than a second photo-sensitive element, and wherein the first photo-sensitive element occupies less of the photo-sensitive area than the second photo-sensitive element, wherein the non-focusing aperture is smaller than the photo-sensitive area, and wherein each of the photo-sensitive elements receives unfocused light entering the non-focusing aperture from a respective direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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transmitting an interrogation signal to an eye-mountable device comprising an image sensor including a photo-sensitive area that receives unfocused light entering a non-focusing aperture in an opaque screen, and an antenna, wherein the interrogation signal causes the image sensor to measure light received via the non-focusing aperture by a plurality of photo-sensitive elements occupying the photo-sensitive area, wherein the plurality of photo-sensitive elements includes a first photo-sensitive element closer to the non-focusing aperture than a second photo-sensitive element, and wherein the second photo-sensitive element has a larger light receiving area than the first photo-sensitive element; receiving, from the eye-mountable device, an indication of the measured light measured by the plurality of photo-sensitive elements; and determining an image based on the received indication, wherein determining the image includes accounting for variations between light receiving areas among the plurality of photo-sensitive elements. - View Dependent Claims (13, 14, 15)
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16. A non-transitory computer readable storage medium storing instructions that, when executed by one or more processors in a computing device, cause the computing device to perform operations, the operations comprising:
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transmitting an interrogation signal to an eye-mountable device comprising an image sensor including a photo-sensitive area that receives unfocused light entering a non-focusing aperture in an opaque screen, and an antenna, wherein the interrogation signal is configured to cause the image sensor to obtain an image by measuring light received via the non-focusing aperture by a plurality of photo-sensitive elements occupying the photo-sensitive area, wherein the plurality of photo-sensitive elements includes a first photo-sensitive element closer to the non-focusing aperture than a second photo-sensitive element, and wherein the second photo-sensitive element has a larger light receiving area than the first photo-sensitive element; receiving, from the eye-mountable device, an indication of the measured light measured by the plurality of photo-sensitive elements; and determining an image based on the received indication, wherein determining the image includes accounting for variations between light receiving areas among the plurality of photo-sensitive elements. - View Dependent Claims (17)
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Specification