CONTROL DEVICE FOR VARIABLE FOCUS LENSES, CONTROL METHOD FOR VARIABLE FOCUS LENSES, AND ELECTRONIC GLASSES

摘要

A control device (4) controls variable focus lenses (2), each comprising a first substrate (20), a second substrate (22) that faces the first substrate (20), and a variable focus area (14) positioned between the first substrate (20) and the second substrate (22). The control device (4) applies a voltage for a predetermined amount of time after not applying the voltage to the variable focus areas (14) when an off-signal is inputted to the variable focus areas (14), and subsequently does not apply the voltage. A period of cloudiness that occurs when switching the voltage applied to the variable focus areas (14) can thus be reduced.