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US 11,863,849 B2Granted
Optical element driving mechanism
AssigneeTDK Taiwan Corp.
InventorsChao-Chang Hu, Shu-Shan Chen, Chen-Hsien Fan
Life of this patent
Estimating the term…
Abstract
An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed portion, a movable portion, and a driving assembly. The fixed portion includes a main axis. The movable portion is movably disposed on the fixed portion. The movable portion is connected to an optical element. The driving assembly is used for driving the movable portion to move relative to the fixed portion.
Claims18
An optical element driving mechanism, comprising:
- a fixed portion having a main axis;
- a movable portion movably disposed on the fixed portion and connected to an optical element;
- a driving assembly driving the movable portion to move relative to the fixed portion;
- wherein the driving assembly comprises a transmission element, a first resilient element, a second resilient element, and a driving element;
- wherein the driving element is connected to the transmission element through the first resilient element, and the transmission element is driven by the driving element to move in a first direction;
- and a pressing element pressing the transmission in a pressing direction, wherein the transmission element abuts the movable portion, and the pressing direction is different than the first direction;
- a tightening element pressing the pressing element, wherein the pressing element at least partially overlaps the tightening element when viewed in a direction that is perpendicular to the first direction;
- and a contact unit disposed between the pressing element and the transmission element, wherein the transmission element, the pressing element, and the contact unit at least partially overlap each other.
5 more elements
An optical element driving mechanism, comprising:
- a fixed portion having a main axis;
- a movable portion movably disposed on the fixed portion and connected to an optical element;
- a driving assembly driving the movable portion to move relative to the fixed portion;
- wherein the driving assembly comprises a transmission element, a first resilient element, a second resilient element, and a driving element;
- wherein the driving element is connected to the transmission element through the first resilient element, and the transmission element is driven by the driving element to move in a first direction;
- a rotational shaft disposed on the fixed portion, and the transmission element drives the movable portion to rotate relative to the rotational shaft;
- a first magnetic element disposed on the movable portion;
- and a second magnetic element disposed on the fixed portion, wherein the first magnetic element, the second magnetic element, and the rotational shaft at least partially overlap each other when viewed in a direction that is perpendicular to a second direction, and a force exerted toward the fixed portion is applied to the movable portion by the first magnetic element and the second magnetic element, wherein the fixed portion comprises a concave part, the movable portion comprises a recessed structure, the first magnetic element is disposed in the concave part, and the second magnetic element is disposed in the recessed structure.
5 more elements
An optical element driving mechanism, comprising:
- a fixed portion having a main axis;
- a movable portion movably disposed on the fixed portion and connected to an optical element;
- a driving assembly driving the movable portion to move relative to the fixed portion;
- wherein the driving assembly comprises a transmission element, a first resilient element, a second resilient element, and a driving element;
- wherein the driving element is connected to the transmission element through the first resilient element, and the transmission element is driven by the driving element to move in a first direction;
- a rotational shaft disposed on the fixed portion, and the transmission element drives the movable portion to rotate relative to the rotational shaft;
- and a bonding element, wherein the fixed portion comprises a concave portion, the first resilient element is positioned between the fixed portion and the piezoelectric units, the bonding element is disposed in the concave portion, and the first resilient element is connected to the fixed portion via the bonding element.
4 more elements
An optical element driving mechanism, comprising:
- a fixed portion having a main axis;
- a movable portion movably disposed on the fixed portion and connected to an optical element;
- a driving assembly driving the movable portion to move relative to the fixed portion;
- wherein the movable portion comprises:
- a first movable portion movably connected to the fixed portion;
- and a second movable portion movably connected to the first movable portion and connected to the optical element;
- wherein the driving assembly comprises a transmission element, a first resilient element, and a driving element, and the driving element drives the transmission element through the first resilient element to move in a first direction;
- wherein the first movable portion moves in the first direction, the second movable portion moves in a second direction that is different than the first direction, and the transmission element is movably connected to the first movable portion;
- and an intermediate element and a bonding element, wherein the intermediate element is positioned between the first movable portion and the second movable portion, the first movable portion comprises a first sliding surface and the second movable portion comprises a second sliding surface, wherein the first sliding surface faces the second sliding surface, and the first sliding surface and the second sliding surface are neither perpendicular nor parallel to the first direction or the second direction, wherein the intermediate element is disposed between the first sliding surface and the second sliding surface;
- a first recess is positioned on the first sliding surface extending in the first direction when viewed in the second direction, and the intermediate element is disposed in the first recess, a second recess is positioned on the second sliding surface extending in the first direction when viewed in the second direction, and the intermediate element is disposed in the second recess, the driving assembly is connected to the fixed portion via the bonding element, the fixed portion further comprises a base, and the driving assembly is connected to the base via the bonding element, the base comprises a first connecting surface that is parallel to the second direction, the driving assembly comprises a second connecting surface that is opposite the first connecting element, and the bonding element is disposed between the first connecting surface and the second connecting surface, the first connecting surface at least partially overlaps the transmission element when viewed in the first direction.
7 more elements
Dependencies are inferred from the claim text.