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

Claim 0:
1. 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 provide voltages to the plurality of insulated electrodes to tilt the fluid interface along a tilt direction, wherein the voltages provided to the plurality of insulated electrodes include asymmetrical voltages between adjacent insulated electrodes so as to partially smooth discontinuities in the fluid interface, wherein the tilted fluid interface is curved and has a first average radius of curvature along the tilt direction and a second average radius of curvature along a direction orthogonal to the tilt direction, and wherein the second average radius of curvature differs from the first average radius of curvature by no more than about 20%.