Retina implant
First Claim
Patent Images
1. A retina implant comprising:
- a) a surface;
b) a plurality of pixel elements disposed on the surface for receiving and converting incoming light energy into electrical energy;
c) at least one amplifier in communication with the pixel elements;
d) a plurality of stimulation electrodes, the electrodes being supplied via the at least one amplifier as a function of the incoming light energy received by the pixel elements; and
e) at least one light-sensitive reference element coupled with the at least one amplifier for controlling amplification thereof as a function of light energy impinging on the at least one reference element.
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Abstract
A retina implant, comprises a surface and a plurality of pixel elements disposed on the surface for receiving and converting incoming light energy into electric energy. At least one amplifier is provided in the implant, and a plurality of stimulation electrodes supplied via the at least one amplifier as a function of signals received by the pixel elements. At least one light-sensitive reference element is coupled with the at least one amplifier for controlling amplification thereof as a function of light energy impinging on the at least one reference element.
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Citations
31 Claims
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1. A retina implant comprising:
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a) a surface;
b) a plurality of pixel elements disposed on the surface for receiving and converting incoming light energy into electrical energy;
c) at least one amplifier in communication with the pixel elements;
d) a plurality of stimulation electrodes, the electrodes being supplied via the at least one amplifier as a function of the incoming light energy received by the pixel elements; and
e) at least one light-sensitive reference element coupled with the at least one amplifier for controlling amplification thereof as a function of light energy impinging on the at least one reference element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A retina implant comprising:
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a plurality of pixel elements disposed on a first surface of a substrate wherein the substrate is adapted to be positioned such that the first surface faces the lens of an eye so as to receive incident light;
at least one amplifier in communication with the pixel elements and receiving external power;
plurality of stimulation electrodes positioned on the first surface so as to stimulate adjacent retinal cells of the eye; and
at least one light-sensitive reference element receiving incident light wherein the amplifier controls the stimulus of the stimulation electrodes as a function of the intensity of the incident light to the pixel elements and the at least one reference element. - View Dependent Claims (21, 22, 23, 24)
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25. A retina implant comprising:
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a plurality of pixel elements disposed on a first surface of a substrate wherein the substrate is adapted to be positioned such that the first surface faces the lens of an eye so as to receive incident light;
at least one amplifier in communication with the pixel elements and receiving external power;
a plurality of stimulation electrodes positioned on the first surface so as to stimulate adjacent retinal cells of the eye; and
at least one reference element in communication with at least one of the pixel elements and the at least one amplifier wherein the at least one reference element receives at least a periodic signal representative of the intensity of the incident light received by the at least one pixel element and provides a control signal to the at least one amplifier as a function of the intensity of the incident light as received by the pixel elements and the at least one reference element.
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26. A retina implant comprising:
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at least one pixel element that is adapted to be implanted in an eye so as to receive light incident on the eye, wherein the pixel element produces a pixel intensity signal; and
at least one reference element that is adapted to be implanted in the eye so as to receive light incident on the eye, wherein the at least one reference element is adapted to determine an average intensity value of the light incident on the eye and wherein the retina implant produces stimulation signals as a function of the pixel intensity signal and the average intensity value. - View Dependent Claims (27, 28, 29, 30, 31)
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Specification