Ambient light sensor with modular structure

摘要

The sensor (1) has an electronic package (24) stored in an insulating housing (3.2) for bus communication with locked indicating and reporting apparatuses over a centrally bus controller. The electronic package and the centrally bus controller are programmed in such a manner that light power of optical indicator units of multiple indicating or reporting apparatuses is adjusted along same direction in dependence of an environment lightness of the centrally bus controller, where the indicating or reporting apparatuses are fixed on a bus and supply conduit.