IMPROVED MEMBRANE, ESPECIALLY FOR AN OPTICAL DEVICE HAVING A DEFORMABLE MEMBRANE

摘要

The invention relates to an optical device having a deformable membrane (2) comprising a flexible film (20) having at least one peripheral anchoring zone (2.3), a central zone (2.1) and an intermediate zone (2.2) between the central zone (2.1) and the anchoring zone (2.3). The membrane also includes one or more movable parts (5.1) of electrostatic actuating means (5), each movable part being formed from a leg (5.11) terminating on one side in a foot (5.12) mechanically fastened to a film-fastening region (200) located in the intermediate zone (2.2) and terminating on the other side in a free end (5.13). The legs (5.11) incorporate a movable electrode (5.2), the free end (5.13) having to be attracted by a fixed electrode (6.2) of the actuating means (5). The free end is placed facing the free end (5.13) so as to deform at least the central zone (2.1) of the membrane (2).