Method and device for currentless remote control of a switch in an electrical circuit and remote-control switch therefor

摘要

The invention relates to the currentless remote control of electrical circuits, for example normal household lighting systems. In this case, a photosensitive switch (22) is acted on by a continuously lit light source (2) via a light guide (4). Depending on whether or not the switch (22) receives light, it is "ON" or "OFF" (or vice versa). For remote switching of the switch (22), a remote-control switch (30) is built into the light guide (4), which remote-control switch transmits or interrupts the light flux in the light guide (4). The electrical switch (22) can thereby be operated using the remote-control switch (30), without it being necessary to lay an electrical cable to the location of the remote-control switching system. <IMAGE>