Long hinge actuator snubbing
A device may comprise an upper module cover, a lower module cover, an outer frame, and an actuator having a movable frame. The movable frame may be at least partially disposed intermediate the upper module cover and the lower module cover. A hinge flexure may interconnect the outer frame and the movable frame such that the movable frame is rotatable with respect to the outer frame. The upper module cover and/or the lower module cover may be adapted to limit a movement of the movable frame.
1. A device comprising;
a structure;
a generally planar outer frame that defines a plane;
an actuator having a generally planar movable frame and a generally planar fixed frame, wherein, in an undeployed position, the outer frame, the movable frame, and the fixed frame are coplanar, and wherein, in a deployed position, the actuator comprises a portion that extends from the plane of the outer frame at an angle with respect thereto; and
a hinge flexure attaching the outer frame to the movable frame such that the movable frame rotates between positions respectively non-coplanar with the fixed frame and coplanar with the fixed frame when the hinge flexure bends; and
wherein the structure limits a movement of the movable frame.
2. The device as recited in claim 1 , wherein the structure comprises a lens and wherein the actuator is configured to move the lens.
3. The device as recited in claim 1 , wherein the movement of the movable frame is limited such that double bending of the hinge flexure is mitigated.
4. The device as recited in claim 1 , wherein the movement of the movable frame is limited such that double bending of the hinge flexure caused by a shock is mitigated.
5. The device as recited in claim 1 , wherein the structure, the outer frame, the actuator, and the hinge flexure cooperate to define an actuator module.
6. The device as recited in claim 1 , wherein the device is a miniature camera, and further comprising:
a lens barrel for the miniature camera; and
wherein the structure, the outer frame, the actuator, and the hinge flexure cooperate to define an actuator module received within the lens barrel.
7. The device as recited in claim 1 , wherein the structure, the outer frame, the actuator, and the hinge flexure cooperate to define a substantially round actuator module.
8. The device as recited in claim 1 , wherein the outer frame, the actuator, and the hinge flexure are of monolithic construction.
9. The device as recited in claim 1 , wherein the hinge flexure is X-shaped.
10. The device as recited in claim 1 , wherein the outer frame, the actuator, and the hinge flexure at least partially define a MEMS device.
11. An electronic device comprising the device of claim 1 .
12. The device as recited in claim 1 , further comprising:
a lens barrel, wherein the structure, the outer frame, the movable frame, the fixed frame, and the hinge flexure cooperate to define an actuator module that is disposed substantially within the lens barrel.
13. The device as recited in claim 12 , wherein the structure comprises a lens.
14. The device as recited in claim 12 , further comprising a miniature camera to which the lens barrel is attached.
15. An electronic device comprising the device of claim 12 .
16. A method comprising:
providing a structure;
forming a generally planar outer frame, wherein the generally planar outer frame defines a plane;
forming an actuator having a generally planar movable frame and a generally planar fixed frame that are coplanar with the outer frame;
deploying a portion of the actuator so that the portion extends from the plane of the outer frame at an angle with respect thereto;
forming a hinge flexure attaching the outer frame to the movable frame such that the movable frame is rotatable between positions respectively non-coplanar with the fixed frame and coplanar with the fixed frame when the hinge flexure bends;
positioning the outer frame, the actuator, and the hinge flexure proximate the structure; and
utilizing the structure to limit a movement of the movable frame.
17. The method as recited in claim 16 , wherein the structure comprises a lens.
18. The method as recited in claim 16 , wherein the outer frame, the actuator, and the hinge flexure comprise a monolithic silicon MEMS structure.
19. A method comprising:
limiting movement of a generally planar movable frame of an actuator using a lens to limit bending of a hinge flexure that interconnects a generally planar outer frame of the actuator with the movable frame for movement between positions respectively non-coplanar and coplanar with the outer frame; and
wherein limiting movement of the movable frame mitigates double bending of the hinge flexure during a shock.
20. The method as recited in claim 19 , further comprising moving the movable frame to effect at least one of focusing a miniature camera, zooming a miniature camera, and optically stabilizing an image of a miniature camera.