Electro-optic lenses for correction of higher order aberrations
First Claim
Patent Images
1. A lens, comprising:
- a. a substrate;
b. a first electrode layer positioned upon the substrate, the first electrode layer including at least three adjacent concentric electrode rings, each of the at least three adjacent concentric electrode rings separated from one another by a resistive material; and
c. a uniform electrode layer in a first plane spaced from and parallel to a second plane of the concentric electrode rings,wherein a resistance of the resistive material is in a range of from 0.1 Mega-Ohms per square to 100 Mega-Ohms per square, andwherein when a voltage is applied across the concentric electrode rings and the uniform electrode layer, a phase profile between adjacent pairs of electrodes of the concentric electrode rings is substantially linear.
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Abstract
A lens is presented in which the lens includes a substrate and an electrode layer. The electrode layer is positioned upon the substrate. The electrode layer has radially alternating rings of electrodes and resistive material. When voltage is applied across two adjacent electrodes the profile of the electric field therebetween is linear. When voltage is applied to the rings of electrodes, the optical phase profile of the lens closely approximates the optical phase of ideal spherical aberration correction.
263 Citations
26 Claims
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1. A lens, comprising:
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a. a substrate; b. a first electrode layer positioned upon the substrate, the first electrode layer including at least three adjacent concentric electrode rings, each of the at least three adjacent concentric electrode rings separated from one another by a resistive material; and c. a uniform electrode layer in a first plane spaced from and parallel to a second plane of the concentric electrode rings, wherein a resistance of the resistive material is in a range of from 0.1 Mega-Ohms per square to 100 Mega-Ohms per square, and wherein when a voltage is applied across the concentric electrode rings and the uniform electrode layer, a phase profile between adjacent pairs of electrodes of the concentric electrode rings is substantially linear. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A lens for correcting spherical aberration, comprising:
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a uniform electrode layer in a first plane; and at least three adjacent concentric electrode rings in a second plane spaced apart from and parallel to the first plane, each of the at least three adjacent concentric electrode rings separated from one another in the second plane by a resistive material, wherein a resistance of the resistive material is in a range of from 0.1 Mega-Ohms per square to 100 Mega-Ohms per square, and wherein the lens is configured such that, when different voltages are applied to a plurality of the electrode rings, an optical phase profile between adjacent electrode rings closely approximates an optical phase profile of ideal spherical aberration correction for a human eye. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. A lens, comprising:
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a. a uniform electrode layer; and b. a patterned electrode layer spaced from the uniform electrode layer, wherein the patterned electrode layer has at least three adjacent concentric electrode rings and is coated with a resistive material, the resistive material separating each of the at least three adjacent concentric electrode rings from one another, wherein adjacent electrode rings are spaced by a distance that is substantially greater than the distance of the space between the electrode layers, wherein a resistance of the resistive material is in a range of from 0.1 Mega-Ohms per square to 100 Mega-Ohms per square, and wherein the lens is configured such that, when a voltage is applied across the electrode layers the optical phase profile of the lens is substantially constant across each of the electrode rings, changes approximately linearly between adjacent electrode rings, and approximates an optical phase profile of ideal spherical aberration correction. - View Dependent Claims (24, 25, 26)
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Specification