Corning Incorporated
LIQUID LENS CONTROL SYSTEMS AND METHODS WITH REDUCED PHASE DELAY

Abstract:

A liquid lens includes an orientation sensor such as a gyroscope to compensate for the effects of motion. A raw gyroscope signal, including noise components, can be provided to the controller without processing by phase-shifting filters. One or more filters can be applied to the raw gyroscope signal to allow a band of frequencies to pass without introducing phase delay. The controller can use a feed forward system to generate control output signals based at least in part on the raw gyroscope signal, including noise components. The control output signals can be used to drive voltage signals to electrodes to compensate for motion.