Variable aperture, camera module and electronic device
AssigneeBeijing Xiaomi Mobile Software Co., Ltd.
InventorsHui Wang, Xinjie Liu
Life of this patent
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Abstract
Disclosed in the present application are a variable aperture, a camera module and an electronic device, which relate to the field of electronic technology. The variable aperture includes a roller, a rotation bracket, a plurality of blades and a base. The base is annular. The base is sleeved outside the rotation bracket. The roller is located between the base and the rotation bracket and is in rollable connection with the base and the rotation bracket. The multiple blades are annularly distributed on one side of the base and are encircled to form an aperture hole, multiple blades are in rotatable connection with the base and in slidable connection with the rotation bracket.
Claims17
A camera module, comprising:
- a variable aperture;
- a lens assembly;
- a first actuator;
- a second actuator;
- wherein the variable aperture comprises:
- a roller;
- a rotation bracket;
- a plurality of blades;
- and
- a base,
- wherein the base is annular and is sleeved outside the rotation bracket,
- the roller is located between the base and the rotation bracket and is in a rollable connection with the base and the rotation bracket,
- the plurality of blades are annularly distributed on one side of the base and are encircled to form an aperture hole, and
- the plurality of blades are in a rotatable connection with the base and in a slidable connection with the rotation bracket,
- the variable aperture is connected with the lens assembly and is located on a light entrance side of the lens assembly, the first actuator is connected with a side of the lens assembly away from the variable aperture, and the second actuator is connected with a side of the first actuator away from the lens assembly,
- the second actuator includes a support member and a bearing member, wherein the support member is connected with the first actuator, and a side of the support member away from the first actuator is in a movable connection with the bearing member, and
- the second actuator includes at least four shape memory alloy (SMA) wires, the support member has four sides, the SMA wires are respectively located on the four sides of the support member, one end of each of the SMA wires is connected with a corner of the support member, and another end of each of the SMA wires is connected with the bearing member.
An electronic device, comprising a camera module, the camera module including:
- a variable aperture;
- a lens assembly;
- a first actuator;
- and
- a second actuator,
- wherein the variable aperture is connected with the lens assembly and is located on a light entrance side of the lens assembly, the first actuator is connected with a side of the lens assembly away from the variable aperture, and the second actuator is connected with a side of the first actuator away from the lens assembly,
- wherein the variable aperture includes:
- a roller;
- a rotation bracket;
- a plurality of blades;
- and
- a base,
- wherein the base is annular and is sleeved outside the rotation bracket,
- the roller is located between the base and the rotation bracket and is in a rollable connection with the base and the rotation bracket,
- the plurality of blades are annularly distributed on one side of the base and are encircled to form an aperture hole,
- the plurality of blades are in a rotatable connection with the base and in a slidable connection with the rotation bracket,
- the second actuator includes a support member and a bearing member, wherein the support member is connected with the first actuator, and a side of the support member away from the first actuator is in a movable connection with the bearing member, and
- the second actuator includes at least four shape memory alloy (SMA) wires, the support member has four sides, the SMA wires are respectively located on the four sides of the support member, one end of each of the SMA wires is connected with a corner of the support member, and another end of each of the SMA wires is connected with the bearing member.
Dependencies are inferred from the claim text.