Abstract: A heat-dissipating member for a light source of a projector includes a heat-dissipating sheet connected to the light source of the projector and a fan installed on one side of the heat-dissipating sheet. The heat-dissipating sheet includes a heat-conducting board connected to the light source, a plurality of wings protruding from the heat-conducting board, and a side board protruding from one end of the heat-conducting board to a direction away from the wings and approaching the fan. A surface of the side board facing the fan is wave-shaped. The heat-dissipating member for a light source of a projector provides less volume and ensures the light source to work within a normal working temperature range.

Abstract: A monitoring system with two detectors arranged on left and right sides of a camera thereof. The two detectors divide the area around the monitoring system into a non-detectable region, an overlapped detecting region, and first and second non-overlapped detecting regions. According to the detection result of the detectors, the control unit wakes up from a sleep mode when an object leaves the non-detectable region and enters the first or second non-overlapped detecting region. Meanwhile, the control unit turns on the camera to start shooting when the object has further entered the overlapped detecting region.