Electro-active opthalmic lens having an optical power blending region
A spectacle lens is disclosed. The disclosed lens provides a vision correcting area for the correction of a wearer's refractive error. The viewing correction area provides correction for non-conventional refractive error to provide at least a part of the wearer's vision correction. The lens has a prescription based on a wave front analysis of the wearer's eye and the lens can further be modified to fit within an eyeglass frame.
1. A device, comprising:
a first conventional lens;
a first electro-active lens optically aligned with the first conventional lens, the first electro-active lens comprising a first electro-active layer, the device configured to focus an image of an object over a range of distances;
a controller configured to focus the device over the range of distances;
a second electro-active lens; and
a diffractive optic in optical alignment with the first electro-active layer;
wherein:
an insulator separates an active region of said first electro-active layer from a non-activated region of said first electro-active layer;
said first electro-active layer comprises a multi-grid electro-active structure;
said first electro-active layer is configured to provide a spherical power correction;
said first electro-active layer is configured to provide a cylindrical power correction;
said first electro-active layer is a high-order aberration corrector; and
the first conventional lens is a multifocal optic.
2. An electro-active ophthalmic lens comprising:
a first element having a convex surface;
a second element having a concave surface, the concave surface mated to the convex surface of the first element;
a decentered electro-active zone, the decentered electro-active zone comprising an electro-active material disposed in a cavity formed between the convex surface and the concave surface, the electro-active material having a first refractive index in a first state and a second refractive index in a second state, the decentered electro-active zone having a centroid disposed below a mid-line of the first element.
3. The electro-active ophthalmic lens of claim 2 , wherein:
the first element comprises a multi-focal optic.
4. The electro-active ophthalmic lens of claim 2 , wherein:
the first element comprises a progressive addition lens.
5. The electro-active ophthalmic lens of claim 2 , wherein:
the first element provides astigmatism correction.
6. The electro-active ophthalmic lens of claim 2 , wherein:
the first element has an astigmatic axis rotated with respect to the mid-line of the first element.
7. The electro-active ophthalmic lens of claim 2 , wherein:
the convex surface defines a diffractive pattern along an interior surface of the cavity; and
the diffractive pattern having a centroid disposed below a mid-line of the first element.
8. The electro-active ophthalmic lens of claim 2 , wherein:
the convex surface defines a diffractive pattern along an interior surface of the cavity;
the diffractive pattern having a centroid disposed below a mid-line of the first element; and
the diffractive pattern is disposed partially above the mid-line of the convex surface.
9. The electro-active ophthalmic lens of claim 2 , wherein:
the convex surface defines a diffractive pattern along an interior surface of the cavity; and
the diffractive pattern having a centroid disposed below a mid-line of the first element; and
the diffractive pattern is disposed completely below the mid-line of the convex surface.
10. The electro-active ophthalmic lens of claim 2 , wherein:
the concave surface extends to an edge of the convex surface.
11. The electro-active ophthalmic lens of claim 2 , wherein:
switching the electro-active material between the first state and the second state changes an astigmatism of the electro-active ophthalmic lens.
12. The electro-active ophthalmic lens of claim 2 , wherein:
the electro-active ophthalmic lens is a lens blank.
13. The electro-active ophthalmic lens of claim 2 , wherein:
the electro-active ophthalmic lens is a lens blank that is configured to be ground, polished, and/or edged.
14. The electro-active ophthalmic lens of claim 2 , further comprising:
a framing layer, disposed around the electro-active material and between the concave surface and the convex surface, and configured to seal the electro-active material in the cavity.
15. The electro-active ophthalmic lens of claim 2 , further comprising:
a framing layer, disposed around the electro-active material and between the concave surface and the convex surface, and configured to seal the electro-active material in the cavity;
wherein:
the first state is an unactivated state; and
the framing layer has a refractive index approximately equal to the first refractive index.
16. The electro-active ophthalmic lens of claim 2 , further comprising:
an electrode, disposed on the concave surface, to apply an electric field to the electro-active material so as to switch the electro-active material between the first state and the second state; and
at least one conductive wire, extending from the electrode to an edge of the electro-active ophthalmic lens, to connect the electrode to at least one a power source or a controller.
17. Electro-active spectacles comprising:
the electro-active ophthalmic lens of claim 16 ;
spectacle frames to hold the electro-active ophthalmic lens; and
a processor, disposed in or on the spectacle frames, in electrical communication with the at least one conductive wire, to switch the electro-active material between the first state and the second state.
18. The electro-active spectacles of claim 17 , further comprising:
a reprogrammable memory, operably coupled to the controller, to store instructions for the processor.
19. The electro-active spectacles of claim 18 , wherein:
the instructions comprise instructions for providing a vision correction for a wearer of the electro-active spectacles.
20. An electro-active ophthalmic lens comprising:
a first element having a convex surface, the convex surface defining a diffractive pattern having a centroid disposed below a mid-line of the first element;
a second element having concave surface, the concave surface mated to the convex surface of the first element to form a cavity; and
an electro-active material disposed in the cavity, the electro-active material switchable between a first state having a first refractive index and a second state having a second refractive index.
21. An electro-active ophthalmic lens comprising:
a first element having a convex surface, the convex surface defining a diffractive pattern;
a second element having a concave surface, the concave surface mated to the convex surface of the first element to form a decentered cavity comprising the diffractive pattern;
an electro-active material disposed in the decentered cavity, the electro-active material having a first refractive index in a first state and a second refractive index in a second state; and
a framing layer at least partially disposed between the convex surface of the first element and the concave surface of the second element to seal the electro-active material in the decentered cavity, the framing layer having a refractive index approximately equal to the first refractive index.
22. An electro-active ophthalmic lens comprising:
a first element having a convex surface;
a second element having a concave surface, the concave surface mated to the convex surface of the first element;
a decentered electro-active zone, the decentered electro-active zone comprising an electro-active material disposed in a cavity formed between the convex surface and the concave surface, the electro-active material having a first refractive index in a first state and a second refractive index in a second state, the decentered electro-active zone having a centroid disposed below a mid-line of the first element;
at least one pair of electrodes, disposed on the concave surface and the convex surface, that operatively applies an electric field to the electro-active material and operatively switches the electro-active material between the first state and the second state; and
a framing layer, disposed around the electro-active material and between the concave surface and the convex surface, that operatively seals the electro-active material in the cavity;
wherein:
the convex surface or the concave surface defines a diffractive pattern along an interior surface of the cavity; and
the concave surface extends to an edge of the convex surface.
23. An electro-active ophthalmic lens comprising:
a first element having a convex surface;
a second element having a concave surface, the concave surface mated to the convex surface of the first element;
a decentered electro-active zone, the decentered electro-active zone comprising an electro-active material disposed in a cavity formed between the convex surface and the concave surface, the electro-active material having a first refractive index in a first state and a second refractive index in a second state, the decentered electro-active zone having a centroid disposed below a mid-line of the first element;
at least one pair of electrodes, disposed on the concave surface and the convex surface, that operatively applies an electric field to the electro-active material and operatively switches the electro-active material between the first state and the second state; and
a framing layer, disposed around the electro-active material and between the concave surface and the convex surface, that operatively seals the electro-active material in the cavity;
wherein:
the convex surface or the concave surface defines a diffractive pattern along an interior surface of the cavity; and
the concave surface extends to an edge of the convex surface.