Non-circular contact lenses with payloads
AssigneeTectus Corporation
InventorKuang-mon Ashley Tuan
Life of this patent
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Abstract
An eye-mounted display includes a scleral contact lens with one or more femtoprojectors that project images onto the user's retina. The scleral contact lens has a non-circular perimeter, for example elongated along the direction of the eye opening. The non-circular shape can result in less slippage and/or rotation of the contact lens relative to the eye. If the contact lens is elongated (compared to traditional circular lenses), then it can contain conductive coils that enclose a larger area. Thus, the lens increases coupling efficiency for power or data transfer. There can also be more space within the contact lens for payloads.
Claims20
An electronic contact lens system comprising:
- a scleral contact lens having an interior surface that rests on a sclera of a user's eye when the contact lens is mounted on the user's eye, the contact lens including an optical zone which is in an optical path of the user's eye, wherein:
- the contact lens extends beneath an eyelid of the user's eye when the user is wearing the contact lens;
- a two-dimensional projection of a perimeter of the contact lens onto a plane is non-circular, and a width of the contact lens is larger than a height of the contact lens;
- and
- an electronic payload mounted in the scleral contact lens, where the contact area of the interior surface with the sclera is large enough to reduce slippage and rotation of the contact lens relative to the user's eye sufficiently for operation of the electronic payload.
Dependencies are inferred from the claim text.