Miniature switching device for use in e.g. cameras built into laptop computers has mechanical contacts operated by turning a rotary cam

摘要

The switching system has a number of contact pairs (12) that each have a fixed contact arm (23,24) and deflectable spring contact arms (21). The tips of the arms are profiled and are in contact with rotary cams. As the cams are turned through an arc the arms are deflected to open and close contacts.