Sensor shift structures in optical image stabilization suspensions
AssigneeHutchinson Technology Incorporated
InventorsMark A. Miller, Peter F. Ladwig, Douglas P. Riemer, Duane M. Jelkin, John L. Schumann
Life of this patent
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Abstract
A suspension assembly is described. The suspension assembly including a static member or plate; a moving member or plate movable about an x-axis and a y-axis with respect to the static plate; a sensor mounting region on the moving plate; and one or more shape memory alloy (SMA) elements extending between and coupled to the static plate and moving plate. The SMA elements, when driven by a controller, move the moving plate and the sensor mounting region thereon about the x-axis and the y-axis with respect to the static plate.
Claims20
An actuator comprising:
- a static base member;
- a moving member movable about an x-axis and a y-axis with respect to the static base member, the moving member including at least one corner with at least one inner rail;
- and
- at least a first actuator and a second actuator, wherein each of the first and second actuators including separate shape memory alloy (SMA) elements each of the actuators positioned on the at least one inner rail of the moving member at opposing sides of the at least one corner of the at least one inner rail such that the first actuator is disposed substantially perpendicular to the second actuator, and coupled to the static base member and moving member, wherein the first actuator and second actuator, when driven by a controller, move the moving member about the x-axis and the y-axis, respectively, with respect to the static base member.
A suspension assembly comprising:
- an actuator comprising:
- a static base member;
- a moving member movable about an x-axis and a y-axis with respect to the static base member, the moving member including at least one corner with at least one inner rail;
- and
- at least a first actuator and a second actuator, wherein each of the first and second actuators including separate shape memory alloy (SMA) elements, each of the actuators positioned on the inner rails of the moving member at opposing sides of the at least one corner of the at least one inner rail such that the first actuator is disposed substantially perpendicular to the second actuator, and coupled to the static base member and moving member, wherein the first actuator and second actuator, when driven by a controller, move the moving member about the x-axis and the y-axis, respectively, with respect to the static base member.
Dependencies are inferred from the claim text.