Dimmer and switch suitable for driving a capacitive or complex capacitive-resistive load such as liquid crystal film

摘要

A transparency adjustment system comprising a transparent physical element whose electrical behavior is that of a capacitive load; and a power dimmer apparatus operative to provide AC current to the transparent physical element to generate a set of transparency states including a plurality of transparency states other than full transparency. Included in the scope of the invention is a system which changes the state of a load such as LC film from transparent to translucent in a single step rather than gradually.