Electrostatically controlled optical device having a variable operative condition, particularly shutter or mirror

摘要

An optical device is described, such as a shutter or a mirror with variable reflectance, whose operative state is controlled by an electrostatic petal (6). The device comprises a first fixed support (2) with a substrate (3), and a first electrode (4) covered by an insulating layer (5). The electrostatic petal (6) has one end connected to the fixed support and is adapted to lay down over the latter following application of voltage between the electrode (4) and the petal, which is constituted by a fully metal film or an insulating film with a metal coating on one side. <IMAGE>