Electrostatic acting device including an electret film and an electrostatic power generator including an electret film

摘要

An electrostatic acting device in which leakage of charge from an electret film is suppressed. The electrostatic acting device comprises a movable electrode section (20) having a movable electrode (22) and a fixed electrode section (10) having an electret film (12) opposed to the movable electrode section (20) at a predetermined distance and capable of storing charge and a conductive layer (13) formed on a predetermined region on the upper surface of the electret film (12). The conductive layer (13) is formed on the surface of a region of the electret film (12), and the region is projected.