CONTROLABLE LENS HOLE GUARD, COMPACT CAMERA MODULE AND ELECTRONICS

Abstract

The invention relates to a controllable aperture diaphragm comprising a light-transmitting part, a fixed part, a drive part, and rolling parts. The light-transmitting part comprises movable aperture blades that together surround the light-transmitting aperture. The fixed part has shafts corresponding to the movable aperture blades. The drive part comprises a rotating part, a magnet, and an inductor. The magnet is mounted on the rotating part. The magnet and inductor drive the rotating part to rotate around the light-transmitting aperture, thus controlling the movable aperture blades to rotate relative to the shafts. Rolling parts are positioned between the fixed part and the rotating part and around the light-transmitting aperture, so that the rotating part can rotate relative to the fixed part. In addition, the invention relates to a compact camera module comprising a controllable aperture diaphragm, and an electronic device containing the aforementioned compact camera module.