Aperture, camera module, and electronic device
This application provides for an aperture, a camera module, and an electronic device. The aperture includes a base, a carrier base, a driving part, a resilient sheet, and a plurality of blades. A first optical hole for light to pass through is formed on the base. Each blade is hingedly coupled to the base, and the plurality of blades are distributed annularly around the first optical hole. A light entry hole that is formed by the plurality of blades is coaxial with the first optical hole. The carrier base is connected to the base by using the resilient sheet, and the carrier base is configured to drive each blade to rotate relative to the base. This may result in a change in the size of the light entry hole. The driving part is configured to drive the carrier base to rotate by using an axis line of the first optical hole as a rotational axis.
1. An aperture, comprising: a base, a carrier base, a driver, a resilient sheet, and a plurality of blades;
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.
2. The aperture according to claim 1 , further comprising a second driver, the driver and the second driver are disposed symmetrically about the axis line of the first optical hole.
3. The aperture according to claim 1 , further comprising an induced magnet and a position detection module, wherein:
the induced magnet is disposed on the carrier base and the position detection module is coupled to the base.
4. The aperture according to claim 1 , wherein a shaft hole and a sliding slot are formed on each blade; and
a hinged shaft for receiving the shaft hole is formed on the base, and a sliding shaft for slidably receiving the sliding slot is formed on the carrier base.
5. The aperture according to claim 1 , further comprising a partition plate, wherein a second optical hole for light to pass through is formed on the partition plate; and
the partition plate is disposed on a side of the plurality of blades along a direction of the optical axis, the second optical hole is coaxial with the light entry hole, and a diameter of the second optical hole is less than a maximum diameter of the light entry hole.
6. A camera module, comprising: a camera component and an aperture, wherein:
the aperture comprises a base, a carrier base, a driver, a resilient sheet, and a plurality of blades;
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, so that a light entry hole coaxial with the first optical hole is formed among the plurality of blades;
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, to change a size of the light entry hole;
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, 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; and
the aperture is disposed on a light entry side of the camera component.
7. The camera module according to claim 6 , further comprising a second driver the driver and the second driver are disposed symmetrically about the axis line of the first optical hole.
8. The camera module according to claim 6 , further comprising an induced magnet and a position detection module, wherein:
the induced magnet is disposed on the carrier base and the position detection module is coupled to the base.
9. An electronic device, comprising: a device body and a camera module coupled to the device body, wherein:
the camera module comprises a camera component and an aperture,
the aperture comprises a base, a carrier base, a driver, a resilient sheet, and a plurality of blades;
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;
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, 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; and
the aperture is disposed on a light entry side of the camera component.
10. The electronic device according to claim 9 , wherein a shaft hole and a sliding slot are formed on each blade; and
a hinged shaft for receiving the shaft hole is formed on the base, and a sliding shaft for slidably receiving the sliding slot is formed on the carrier base.
11. The electronic device according to claim 9 , further comprising a partition plate, wherein a second optical hole for light to pass through is formed on the partition plate; and
the partition plate is disposed on a side of the plurality of blades along a direction of the optical axis, the second optical hole is coaxial with the light entry hole, and a diameter of the second optical hole is less than a maximum diameter of the light entry hole.