Zoom lens unit and method of driving the same

摘要

A drive control circuit executes a cycle at least once while a first movable part moves one pitch of an electrode of a plurality of groups of electrodes, the cycle including a first operation for attracting the first movable part to a driving electrode substrate, a second operation for attracting the first movable part and a second movable part to stripe electrodes, a third operation for attracting the second movable part to the driving electrode substrate, and a fourth operation for attracting the first and second movable parts to the stripe electrodes.