Patent Document ID: 9910246
Application ID: 15196421
Patent Status: 1

Claim One:
1. A camera module comprising: a tunable liquid crystal lens including a liquid crystal layer exhibiting a liquid crystal molecular orientation distribution in response to at least one drive signal component, said liquid crystal molecular orientation distribution causing a light ray deviation in a light beam passing through said liquid crystal layer imparting an optical power; an optical power transition controller configured to selectively drive said liquid crystal layer using at least one transient drive signal component configured to temporarily apply a transient potential distribution across said liquid crystal layer before driving said liquid crystal layer using at least one final steady state drive signal component causing said liquid crystal layer to exhibit a desired final steady state optical power if a substantial portion of said liquid crystal layer is to be subject to a final potential having a magnitude lower than a critical potential else driving said liquid crystal layer using said at least one final steady state drive signal component directly, said transient spatially modulated potential distribution being of a desired tendency toward said desired final steady state optical power, said selectively driving said liquid crystal layer using said at least one transient drive signal component being responsive to said optical property transition controller detecting a change in said provided at least one steady state drive signal component; and a focus controller configured to cause the application of said at least one steady state drive signal component across said liquid crystal layer.