IP Library Granted Patent US 11,095,820
Granted Patent B2
US 11,095,820 · App. 16/567,357 · Granted Aug 17, 2021

MEMS locking system

Inventors: Xiaolei Liu (South Pasadena, CA); Matthew Ng (Rosemead, CA); Guiqin Wang (Arcadia, CA)
Assignee: MEMS Drive, Inc.
H04N5/23287B81B3/0051B81B7/0009G02B7/09G02B7/10G02B27/646H02N1/008H04N5/2253H04N5/2254H04N5/2259B81B2201/033B81B2203/0118B81B2203/05
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Quick Facts
Patent No.
US 11,095,820
App. No.
16/567,357
Granted
Aug 17, 2021
Kind
B2
Abstract

A micro-electrical-mechanical system (MEMS) actuator configured to provide multi-axis movement, the micro-electrical-mechanical system (MEMS) actuator including: a first portion, a second portion, wherein the first portion and the second portion are displaceable with respect to each other, and a locking assembly configured to releasably couple the first portion and the second portion to attenuate displacement between the first portion and the second portion.

Claims (32)

1. A multi-axis MEMS assembly comprising:

a micro-electrical-mechanical system (MEMS) actuator configured to provide multi-axis movement, the micro-electrical-mechanical system (MEMS) actuator including:

a first portion,

a second portion, wherein the first portion and the second portion are displaceable with respect to each other, and

a locking assembly configured to releasably couple the first portion and the second portion to attenuate displacement between the first portion and the second portion, wherein the locking assembly includes an engagement assembly and an actuator assembly coupled to the first portion and configured to displace the engagement assembly so that the engagement assembly releasably engages the second portion.

2. The multi-axis MEMS assembly of claim 1 wherein the engagement assembly is configured to engage a surface of the second portion.

3. The multi-axis MEMS assembly of claim 1 wherein the engagement assembly is configured to engage a recess of the second portion.

4. The multi-axis MEMS assembly of claim 1 wherein:

the micro-electrical-mechanical system (MEMS) actuator includes an in-plane MEMS actuator; and

the in-plane MEMS actuator includes the first portion and the second portion.

5. The multi-axis MEMS assembly of claim 4 further comprising:

an optoelectronic device coupled to the in-plane MEMS actuator of the micro-electrical-mechanical system (MEMS) actuator.

6. The multi-axis MEMS assembly of claim 4 wherein the in-plane MEMS actuator is an image stabilization actuator.

7. The multi-axis MEMS assembly of claim 4 wherein the in-plane MEMS actuator is configured to provide linear X-axis movement and linear Y-axis movement.

8. The multi-axis MEMS assembly of claim 7 wherein the in-plane MEMS actuator is further configured to provide rotational Z-axis movement.

9. The multi-axis MEMS assembly of claim 1 wherein:

the micro-electrical-mechanical system (MEMS) actuator includes an out-of-plane MEMS actuator; and

the out-of-plane MEMS actuator includes the first portion and the second portion.

10. The multi-axis MEMS assembly of claim 9 wherein the out-of-plane MEMS actuator is an autofocus actuator.

11. The multi-axis MEMS assembly of claim 9 wherein the out-of-plane MEMS actuator is configured to provide linear Z-axis movement.

12. A multi-axis MEMS assembly comprising:

a micro-electrical-mechanical system (MEMS) actuator configured to provide multi-axis movement, the micro-electrical-mechanical system (MEMS) actuator including:

an in-plane MEMS actuator having a first portion and a second portion, wherein the first portion and the second portion are displaceable with respect to each other, and

a locking assembly configured to releasably couple the first portion and the second portion to attenuate displacement between the first portion and the second portion, wherein the locking assembly includes an engagement assembly and an actuator assembly coupled to the first portion and configured to displace the engagement assembly so that the engagement assembly releasably engages the second portion.

13. The multi-axis MEMS assembly of claim 1 wherein the engagement assembly is configured to engage a surface of the second portion.

14. The multi-axis MEMS assembly of claim 1 wherein the engagement assembly is configured to engage a recess of the second portion.

15. A multi-axis MEMS assembly comprising:

a micro-electrical-mechanical system (MEMS) actuator configured to provide multi-axis movement, the micro-electrical-mechanical system (MEMS) actuator including:

an out-of-plane MEMS actuator having a first portion and a second portion, wherein the first portion and the second portion are displaceable with respect to each other, and

a locking assembly configured to releasably couple the first portion and the second portion to attenuate displacement between the first portion and the second portion, wherein the locking assembly includes an engagement assembly and an actuator assembly coupled to the first portion and configured to displace the engagement assembly so that the engagement assembly releasably engages the second portion.

16. The multi-axis MEMS assembly of claim 1 wherein the engagement assembly is configured to engage a surface of the second portion.

17. The multi-axis MEMS assembly of claim 1 wherein the engagement assembly is configured to engage a recess of the second portion.

Assignments (2)
INTELLECTUAL PROPERTY AGREEMENT Recorded Mar 24, 2021
From: MEMS DRIVE INC.
To: MEMS DRIVE (NANJING) CO., LTD
Reel/Frame 055709/0399 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 11, 2020
From: LIU, XIAOLEI; NG, MATTHEW; WANG, GUIQIN
To: MEMS DRIVE, INC.
Reel/Frame 051786/0173 →
Continuity (2)
Provisional Application 62729799 · Sep 11, 2018
Related Publication 20200084381A1 · Mar 12, 2020