| CPC G02B 7/09 (2013.01) [G02B 3/14 (2013.01); G02B 27/646 (2013.01)] | 20 Claims |
|
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;
one or more insulated electrodes that are insulated from the first and second fluids; 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 one or more insulated electrodes and the one or more electrodes in electrical communication with the first fluid;
wherein the liquid lens has a response frequency;
a gyroscope configured to produce gyroscope signals at a gyroscope frequency that is faster than the response frequency of the liquid lens, wherein the gyroscope signals are representative of vibration, and wherein the gyroscope signals comprise noise; and
a controller configured to:
apply a low pass filter to attenuate gyroscope signals above an upper frequency threshold and a high pass filter to attenuate gyroscope signals below a lower frequency threshold to produce processed gyroscope signals having a phase delay of no more than 20 degrees, wherein gyroscope signals between the upper frequency threshold and the lower frequency threshold are unfiltered; and
produce liquid lens driver voltage signals based at least in part on the unfiltered gyroscope signals between the upper frequency threshold and the lower frequency threshold at a driver frequency that is faster than the response frequency of the liquid lens.
|