wherein the base is coupled to a camera component, and a first optical hole for light to pass through is formed on the base, an axis line of the first optical hole is collinear with an optical axis of the camera component;

each blade of the plurality of blades is hingedly coupled to the base, and the plurality of blades are distributed annularly around the first optical hole to form a light entry hole, the light entry hole being coaxial with the first optical hole;

the carrier base is connected to the base via the resilient sheet, and the carrier base is configured to drive each blade to rotate relative to the base, and to change a size of the light entry hole; and

the driver is configured to drive the carrier base to rotate along a rotational axis, the rotational axis being collinear with the axis line of the first optical hole, wherein the driver comprises a driving coil and a driving magnet; and

the driving coil is disposed on a first side of the base facing the carrier base and the driving magnet is disposed on a second side of the carrier base facing the base, wherein the driving coil is not in contact with the driving magnet.