Long hinge actuator snubbing
View Patent ↗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:
an upper module cover;
a lower module cover;
an outer frame;
an actuator having a movable frame, the movable frame being at least partially disposed intermediate the upper module cover and the lower module cover;
a hinge flexure interconnecting the outer frame and the movable frame such that the movable frame moves with respect to the outer frame when the hinge flexure bends; and
wherein both the upper module cover and the lower module cover limit a movement of the movable frame.
2. 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.
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 cause by a shock is mitigated.
4. The device as recited in claim 1 , wherein the upper module cover and the lower module cover cooperate to substantially enclose the actuator.
5. The device as recited in claim 1 , wherein the upper module cover, the lower module cover, 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 upper module cover, the lower module cover, 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 upper module cover, the lower module cover, 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. A system comprising:
a lens barrel;
an actuator;
an upper module cover;
a lower module cover;
an outer frame;
a movable frame;
a hinge flexure interconnecting the outer frame and the movable frame such that the movable frame moves with respect to the outer frame when the hinge flexure bends;
wherein the upper module cover, the lower module cover, the outer frame, the movable frame, the actuator, and the hinge flexure cooperate to define an actuator module that is disposed substantially within the lens barrel; and
wherein at least one of the upper module cover and the lower module cover limit a movement of the movable frame.
13. The system as recited in claim 12 , further comprising a miniature camera to which the lens barrel is attached.
14. An electronic device comprising the system of claim 12 .
15. A method comprising:
forming an upper module cover of plastic;
forming a lower module cover of plastic;
forming an outer frame;
forming an actuator having a movable frame;
forming a hinge flexure interconnecting the outer frame and the movable frame such that the movable frame moves with respect to the outer frame when the hinge flexure bends;
positioning the outer frame, the actuator, and the hinge flexure at least partially intermediate the upper module cover and the lower module cover; and
wherein at least one of the upper module cover and the lower module cover limit a movement of the movable frame.
16. The method as recited in claim 15 , wherein forming the outer frame, forming the actuator, and forming the hinge flexure comprise forming the outer frame, the actuator, and the hinge flexure of monolithic construction.
17. The method as recited in claim 15 , wherein forming the outer frame, forming the actuator, and forming the hinge flexure comprise forming the outer frame, the actuator, and the hinge flexure using MEMS techniques.
18. The method as recited in claim 15 , wherein forming the outer frame, forming the actuator, and forming the hinge flexure comprise forming the outer frame, the actuator, and the hinge flexure of silicon.
19. A method comprising:
limiting movement of a movable frame of an actuator using both of an upper module cover and a lower module cover to limit bending of a hinge flexure that interconnects an outer frame of the actuator with the movable 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.
21. A device comprising:
an outer frame;
an actuator having a movable frame;
a hinge flexure interconnecting the outer frame and the movable frame such that the movable frame moves with respect to the outer frame when the hinge flexure bends;
means for limiting the movement of the movable frame with respect to the fixed frame;
wherein the limiting means limits vertical movement of the movable frame with respect to the fixed frame; and
wherein the limiting means comprises a plurality of flaps.
22. The device as recited in claim 21 , wherein the limiting means comprises a plurality of flaps that cooperate with an adhesive bonding agent.
23. The device as recited in claim 21 , wherein the limiting means comprises a plurality of flaps that cooperate with epoxy.