Laser patterning of conductive films for electro-active lenses
View Patent ↗Systems and methods for manufacturing electro-active lenses including a peripheral edge, a discrete electro-active region, and at least two substrates. The at least two substrates include a layer of a transparent conductive material, that is laser cut to isolate regions required for establishing an electrical connection between the peripheral edge of the lens, from regions not required for establishing an electrical connection. Isolating the regions of the transparent conductive material required for establishing an electrical connection may include cutting patterns around an electrode of each of the substrates. The regions not required for establishing an electrical connection may be further cut into sections, which may be substantially band-shaped.
1. A device, comprising:
an electro-active optical element, the electro-active element comprising:
a peripheral edge;
a discrete electro-active region;
a first layer of conductive material comprising:
a first region electrically connected to the electro-active region, and
a second region electrically isolated from the first region and from the electro-active region;
a first electrode having an end on the peripheral edge, wherein:
the electrode is apart from the electro-active region,
the electrode is electrically connected to the first region, and
the electrode is configured to apply voltage to the discrete electro-active region via the first region.
2. The device of claim 1 , wherein the device is the electro-active optical element.
3. The device of claim 1 , wherein the second region is electrically isolated from the first region and from the electro-active region by cutting.
4. The device of claim 1 , wherein the first region is required for establishing an electrical connection between the peripheral edge and the electro-active region, and the second region is not required for establishing the electrical connection.
5. The device of claim 1 , further comprising:
a second layer of conductive material comprising:
a third region electrically connected to the electro-active region, and
a fourth region electrically isolated from the third region and from the electro-active region;
a second electrode having an end on the peripheral edge, wherein;
the electrode is apart from the electro-active region,
the electrode is electrically connected to the third region, and
the electrode is configured to apply voltage to the discrete electro-active region via the third region.
6. The device of claim 1 , further comprising:
a first substrate, wherein the first layer of conductive material and the first electrode are disposed on the first substrate,
a second substrate, wherein the second layer of conductive material and the second electrode are disposed on the second substrate; and
wherein;
the first region is formed around the first electrode on the first substrate, and
the third region is formed around the second electrode on the second substrate.
7. The device of claim 1 , wherein;
the first electrode is inside the first region, and
the second electrode is inside the third region.
8. The device based on claim 1 , wherein:
the second region is formed at the peripheral edge of the first substrate by cutting the first layer of conductive material, and
the fourth region is formed at the peripheral edge of the second substrate by cutting the second layer of conductive material.
9. The device based on claim 1 , wherein:
the first electrode extends toward the discrete electro-active region from the peripheral edge, and
the second electrode extends toward the discrete electro-active region from the peripheral edge.
10. The device of claim 1 , wherein the electro-active optical element is a lens.
11. The device of claim 1 , wherein the device is eyewear and wherein the electro-active optical element is a part of the eyewear.
12. The device of claim 1 , wherein the conductive material is a transparent conductive material.
13. The device based on claim 3 , wherein the cutting is accomplished with cuts less than 1 mm wide.
14. The device of claim 5 , wherein;
a refractive index of the discrete electro-active region is changed by applying voltage to the discrete electro-active region via the first layer of conductive material, and
the refractive index of the discrete electro-active region is changed by applying voltage to the discrete electro-active region via the second layer of conductive material.
15. The device of claim 5 , wherein the device further comprises:
an electro-active lens having a peripheral edge;
the discrete electro-active region;
the first layer of conductive material comprising:
the first region electrically connected to the electro-active region, and
the second region electrically isolated from the first region and from the electro-active region;
the first electrode having an end on the peripheral edge, wherein:
the electrode is apart from the electro-active region,
the electrode is electrically connected to the first region, and
the electrode is configured to apply voltage to the discrete electro-active region via the first region;
a controller to apply voltage to the layer of conductive material, wherein:
the second region is electrically isolated from the first region and from the electro-active region by cutting the first layer of conductive material, and
the fourth region is electrically isolated from the third region and from the electro-active region by cutting the second layer of conductive material;
the second region is cut into separate electrically isolated bands, and
the fourth region is cut into separate electrically isolated bands.
16. The device of claim 15 , wherein the device further comprises at least one of a power source, a switch, a sensor, a transmitter, a receiver, a transceiver, a light, a filter, a microphone, a camera, and a display.
17. The device of claim 15 , wherein the device is a pair of eyeglasses.
18. A method of manufacturing an electro-active optical element comprising:
a peripheral edge;
a discrete electro-active region;
a layer of conductive material comprising:
a first region electrically connected to the electro-active region, and
a second region electrically isolated from the first region and from the electro-active region;
an electrode having an end on the peripheral edge, wherein;
the electrode is apart from the electro-active region,
the electrode is electrically connected to the first region, and
the electrode is configured to apply voltage to the discrete electro-active region via the first region;
the method comprising:
cutting the layer of conductive material to electrically isolate the first region from the second region.
19. The method of claim 18 , wherein the cutting is laser cutting.
20. The method of claim 18 , wherein the second region is cut into separate electrically isolated bands.