Shooting apparatus, camera, and electronic device
AssigneeAAC Optics (Nanning) Co., Ltd.
InventorKazuo Shikama
Life of this patent
Estimating the term…
Abstract
A shooting apparatus, a camera, and an electronic device, related to a field of optical technologies, are provided. According to the shooting apparatus, in order to fix the lens assembly, the focusing magnets and the fixing magnetic yokes are used to replace a leaf spring. Then, by energizing the focusing coils, the lens assembly realizes autofocus under the action of the forces of attraction between the focusing magnets and the focusing coils. Therefore, the shooting apparatus can realize focusing and fix the lens assembly without using the leaf spring. This prevents the autofocus mechanism from malfunction caused by easy damage of the leaf spring, and reduces the size and weight of the shooting apparatus, thereby improving the performance of the autofocus mechanism.
Claims14
A shooting apparatus, comprising:
- an autofocus mechanism;
- and a lens assembly with an optical axis;
- wherein,
- the autofocus mechanism comprises:
- a first base with a receiving space;
- a support frame disposed in the receiving space and configured to fix the lens assembly;
- balls disposed between the support frame and the first base;
- and a focusing drive component configured to drive the lens assembly to move along a direction of the optical axis and comprising focusing coils and focusing magnets;
- the autofocus mechanism further comprises:
- a first axial guide mechanism and a second axial guide mechanism disposed at intervals;
- wherein, the first axial guide mechanism comprises:
- a first receiving groove disposed on an outer side of the support frame;
- a first limiting groove disposed on an inner side of the first base;
- and a first ball disposed between the first receiving groove and the first limiting groove;
- and the second axial guide mechanism comprises:
- a second receiving groove disposed on the outer side of the support frame;
- a second limiting groove disposed on the inner side of the first base;
- and a second ball disposed between the second receiving groove and the second limiting groove;
- the first receiving groove comprises a first receiving surface and a second receiving surface, a direction extending from the first receiving groove along a center line of an angle between the first receiving surface and the second receiving surface away from the lens assembly is a first direction;
- the second limiting groove comprises a second sliding surface and a third sliding surface, a direction extending from the second receiving groove along a center line of an angle between the second sliding surface and the third sliding surface away from the lens assembly is a second direction;
- the autofocus mechanism further comprises:
- a plurality of fixing magnetic yokes;
- wherein, the plurality of fixing magnetic yokes and the focusing magnets attract each other, to apply a force to the first ball along the first direction, and apply a force to the second ball along the second direction.
Dependencies are inferred from the claim text.