Adjustable diaphragm, camera module, and electronic device

A camera module, comprising a lens, an autofocus mechanism, and an adjustable diaphragm;

• wherein the adjustable diaphragm includes:
• at least one light-shielding blade;
• a blade supporting ring, wherein the at least one light-shielding blade is rotatably fixed on the blade supporting ring;
• a blade driving ring, coaxial with the blade supporting ring and fixed on an object side of the blade supporting ring, wherein the blade driving ring is rotatable relative to the blade supporting ring, and the at least one light-shielding blade is slidably connected to the blade driving ring;
• and
• an electromagnetic driving assembly, including a base, a driving magnet, a driving rod and a driving coil, wherein the driving magnet is fixed on the base, the driving rod is rotatably fixed on the base, the driving coil is fixed on the driving rod and is arranged relative to the driving magnet, and the driving rod is movably connected to the blade driving ring;
• and
• wherein the driving magnet drives, in response to the driving coil being energized, the driving coil to drive the driving rod to rotate, and the driving rod drives the blade driving ring to rotate to drive the at least one light-shielding blade to block or expose a lens of the camera module;
• the autofocus mechanism includes a housing accommodating the lens, the adjustable diaphragm is fixed on the housing, and the blade supporting ring of the adjustable diaphragm is located on an object side of the lens.

An electronic device, comprising a device body and a camera module, wherein the camera module is arranged on the device body;

• the camera module includes a lens, an autofocus mechanism, and an adjustable diaphragm;
• the adjustable diaphragm includes:
• at least one light-shielding blade;
• a blade supporting ring, wherein the at least one light-shielding blade is rotatably fixed on the blade supporting ring;
• a blade driving ring, coaxial with the blade supporting ring and fixed on an object side of the blade supporting ring, wherein the blade driving ring is rotatable relative to the blade supporting ring, and the at least one light-shielding blade is slidably connected to the blade driving ring;
• and
• an electromagnetic driving assembly, including a base, a driving magnet, a driving rod and a driving coil, wherein the driving magnet is fixed on the base, the driving rod is rotatably fixed on the base, the driving coil is fixed on the driving rod and is arranged relative to the driving magnet, and the driving rod is movably connected to the blade driving ring;
• and
• wherein the driving magnet drives, in response to the driving coil being energized, the driving coil to drive the driving rod to rotate, and the driving rod drives the blade driving ring to rotate to drive the at least one light-shielding blade to block or expose a lens of the camera module;
• the autofocus mechanism includes a housing accommodating the lens, the adjustable diaphragm is fixed on the housing, and the blade supporting ring of the adjustable diaphragm is located on an object side of the lens.