Samsung Electro-mechanics Co., Ltd.

Jaewoo Jun

An actuator includes: a base; first, second, and third moving frames stacked on the base; an image sensor mounted on the first moving frame; a first sensor driving portion including first frame driving members and first shape memory alloy wires disposed outside an edge of the first moving frame to drive the first moving frame in a first direction perpendicular to the optical axis; a second sensor driving portion including second frame driving members and second shape memory alloy wires disposed outside an edge of the second moving frame to drive the second moving frame in a second direction perpendicular to the first direction; and a third sensor driving portion including third frame driving members and third shape memory alloy wires disposed outside an edge of the third moving frame to rotatably drive the third moving frame based on the optical axis.

Actuator for camera and camera module including the same

A disclosed aperture module includes a base defining an opening; a rotation plate seated on the base and rotatable about an optical axis, and including rotation plate teeth disposed along an inner circumferential surface; an aperture driving portion coupled to the rotation plate to rotate the rotation plate in response to an input of an electrical signal; and a plurality of blades stacked in two stages and disposed inside the rotation plate, each blade including blade teeth to engage the rotation plate teeth. The blades move in conjunction with rotation of the rotation plate to define an incidence hole of variable size, and the plurality of blades are disposed to partially overlap neighboring blades of the other stage without overlapping with neighboring blades of the same stage.

Aperture module and camera module including the same

An aperture module including: a base defining a central opening; a rotation plate rotatably seated on the base about an optical axis; an aperture driver coupled with the rotation plate to rotate the rotation plate according to an input electrical signal; and a plurality of blades disposed inside the rotation plate and interlocking with the rotation of the rotation plate to form an incident hole of variable size. Each of the blades includes a blade tooth form at an outer end portion thereof, and the rotation plate includes a rotation plate tooth form disposed along an inner circumferential surface thereof to engage with a respective blade tooth form of each of the plurality of blades.

An aperture module includes a rotating plate, seated on a base having a center opening, configured to rotate about an optical axis; an aperture driver including a moving member coupled to the rotating plate, wherein the moving member is configured to linearly reciprocate; and a plurality of blades stacked as at least two stages on the rotating plate, disposed non-overlapping to each other on the respective stages, and configured to form a variable light incident hole interlocked with rotation of the rotating plate. A cusp of adjacent ones of the blades has an extending corner portion generated when straight lateral sides of the adjacent ones of the blades meet each other.

Growing community of inventors

Suwon-si, South Korea

Jaewoo Jun