Patent ID: 11927772
Assignee: CORNING INCORPORATED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 10:
11. A liquid lens system comprising:
a liquid lens comprising:
a chamber;
a first fluid contained in the chamber;
a second fluid contained in the chamber, wherein the first fluid and the second fluid are substantially immiscible to form a fluid interface between the first fluid and the second fluid;
a plurality of insulated electrodes that are insulated from the first and second fluids, wherein the plurality of insulated electrodes comprise at least four electrodes that extend in a circular fashion about the first fluid and the second fluid, wherein the at least four electrodes cover a continuous circle such that consecutive ones of the at least four electrodes are adjacent each other; and
one or more electrodes in electrical communication with the first fluid, wherein a position of the fluid interface is based at least in part on voltages applied between the plurality of insulated electrodes and the one or more electrodes in electrical communication with the first fluid; and

a controller operable to:
obtain a target focal length value, wherein the controller is operable to provide a common voltage value to the plurality of insulated electrodes in response to the target focal length value when no fluid interface tilt is produced;
obtain a target tilt direction;
obtain a target tilt amount;
provide a first voltage to a first insulated electrode of the plurality of insulated electrodes based at least in part on the target focal length, the target tilt direction, and the target tilt amount, wherein the first voltage is higher than the common voltage value by a first voltage difference; and
provide a second voltage to a second insulated electrode of the plurality of insulated electrodes, wherein the second voltage is lower than the common voltage value by a second voltage difference to tilt the fluid interface along a tilt direction that intersects the first and second insulated electrodes, and wherein the first voltage difference is different than the second voltage difference.