US Patent 11350509 Lighting device and performance system comprising same

A lighting device according to an embodiment of the present invention comprises: a light source unit; a first communication unit for receiving library data from a mobile terminal; a storage unit for storing the library data; a second communication unit for receiving a control message indicating an execution command of a library corresponding to the library data from a control device; and a processor for controlling the light source unit such that the library is executed according to the control message, wherein the processor can control operation timing of the light source unit by sequentially receiving the control message at least a predetermined number of times at the initiation of the execution of the library.