Long hinge actuator snubbing

• US 8,602,666 B2
• Filed: 12/06/2012
• Issued: 12/10/2013
• Est. Priority Date: 11/15/2010
• Status: Active Grant

• Current Assignee: DigitalOptics Corporation MEMS (Adeia Inc.)
• Original Assignee: DigitalOptics Corporation MEMS (Adeia Inc.)
• Inventors: Gutierrez, Roman C.
• Primary Examiner(s): FULLER, RODNEY EVAN
• Application Number:
  US13/707,331
• Publication Number:
  US 20130094843A1
• Time in Patent Office: 369 Days
• Field of Search: 396/75, 396/529
• US Class Current: 396/529
• CPC Class Codes: G02B 27/64 Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
• CPC Class Codes: G03B 13/34 Power focusing
• CPC Class Codes: G03B 17/12 with means for supporting objectives, supplementary lenses, filters, masks, or turrets
• CPC Class Codes: G03B 3/10 Power-operated focusing
• CPC Class Codes: Y10T 29/49002 Electrical device making
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 74/18056 Rotary to or from reciprocating or oscillating

Abstract

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.

Claims

1. A device comprising:

a structure;

a generally planar outer frame;

an actuator having a generally planar movable frame and a generally planar fixed frame, the fixed frame being deployed at an angle relative to the outer frame; and

a hinge flexure attaching the outer frame to the movable frame such that the movable frame moves between positions respectively coplanar with the outer frame and 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.

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. A system, comprising:

a lens barrel;

an actuator;

a structure;

a generally planar outer frame;

a generally planar movable frame;

a generally planar fixed frame deployed at an angle relative to the outer frame;

a hinge flexure attaching the outer frame to the movable frame such that the movable frame is rotatable between positions respectively coplanar with the fixed frame and the outer frame when the hinge flexure bends;

wherein the structure, 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 the structure limits a movement of the movable frame.

13. The system as recited in claim 12, wherein the structure comprises a lens.

14. The system as recited in claim 12, further comprising a miniature camera to which the lens barrel is attached.

15. An electronic device comprising the system of claim 12.

16. A method comprising:

providing a structure;

forming a generally planar outer frame;

forming an actuator having a generally planar movable frame and a generally planar fixed frame, the fixed frame being deployed at an angle relative to the outer frame;

forming a hinge flexure attaching the outer frame to the movable frame such that the movable frame is movable between positions respectively coplanar with the fixed frame and the outer 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 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.

19. The method as recited in claim 16, 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.

20. The method as recited in claim 16, 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.

21. 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 coplanar with the outer frame and a fixed frame that is deployed at an angle relative to the fixed frame; and

wherein limiting movement of the movable frame mitigates double bending of the hinge flexure during a shock.

22. The method as recited in claim 21, 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.

23. A device comprising:

an outer frame;

an actuator having a movable frame;

a hinge flexure attaching the outer frame to 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.

24. The device as recited in claim 23, wherein the limiting means comprises a plurality of flaps that cooperate with an adhesive bonding agent.

25. The device as recited in claim 23, wherein the limiting means comprises a plurality of flaps that cooperate with epoxy.