Variable aperture, lens assembly, and electronic apparatus

The invention provides a variable aperture, a lens assembly and electronic equipment. The iris ring comprises a fixing base, a rotating support, a first circuit board, a second circuit board, a first driving mechanism, a second driving mechanism and a plurality of blades. The rotating support is rotationally connected with the fixing base. A part of the blade is connected with the fixing base. A part of the blade is connected with the rotating support. And the plurality of blades enclose an aperture hole together. The first circuit board and the second circuit board are fixed to the circumferential side face of the fixing base at intervals, the first driving mechanism is electrically connected with the first circuit board, and the second driving mechanism is electrically connected with the second circuit board. The first driving mechanism and the second driving mechanism are used for driving the rotating support to rotate relative to the fixing base, and the rotating support drives the multiple blades to rota