US 12,353,050 B2
Camera apparatus, SMA driving device and manufacturing method, driving method and wiring method thereof
Jiayao Que, Yuyao Ningbo (CN); Zhenyu Chen, Yuyao Ningbo (CN); Yinli Fang, Yuyao Ningbo (CN); Hongde Tu, Yuyao Ningbo (CN); Qi Wang, Yuyao Ningbo (CN); Xiaoyang Sun, Yuyao Ningbo (CN); Kailun Zhou, Yuyao Ningbo (CN); and Hailing Ding, Yuyao Ningbo (CN)
Assigned to NINGBO SUNNY OPOTECH CO., LTD, Yuyao (CN)
Appl. No. 17/266,437
Filed by NINGBO SUNNY OPOTECH CO., LTD., Zhejiang (CN)
PCT Filed Jul. 29, 2019, PCT No. PCT/CN2019/098078
§ 371(c)(1), (2) Date Feb. 5, 2021,
PCT Pub. No. WO2020/029821, PCT Pub. Date Feb. 13, 2020.
Claims priority of application No. 201810891983.0 (CN), filed on Aug. 7, 2018; application No. 201821267078.X (CN), filed on Aug. 7, 2018; application No. 201910151258.4 (CN), filed on Feb. 28, 2019; application No. 201920258543.1 (CN), filed on Feb. 28, 2019; application No. 201910197694.5 (CN), filed on Mar. 15, 2019; and application No. 201920335094.6 (CN), filed on Mar. 15, 2019.
Prior Publication US 2021/0294068 A1, Sep. 23, 2021
Int. Cl. G02B 7/09 (2021.01); F03G 7/06 (2006.01); G02B 7/08 (2021.01); G03B 13/36 (2021.01)
CPC G02B 7/09 (2013.01) [F03G 7/065 (2013.01); G02B 7/08 (2013.01); G03B 13/36 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A shape memory alloy (SMA) driving device, comprising:
a lens carrier;
at least one upgoing driver, wherein the lens carrier is connected to the upgoing driver and is drivable by the upgoing driver, and the upgoing driver supports the lens carrier upwardly in a thermally driven manner, and pulls the lens carrier to move upward; and
at least one downgoing driver, wherein the lens carrier is connected to the downgoing driver and is drivable by the downgoing driver, and the downgoing driver supports the lens carrier downwardly in a thermally driven manner, and pulls the lens carrier to move downward;
wherein the upgoing driver and the downgoing driver include a plurality of SMA lines disposed on lateral sides of the lens carrier and a plurality of bending members extending outwardly from the lateral sides of the lens carrier, and each SMA line is hooked over each bending member;
wherein the SMA driving device further comprises a plurality of spacer apparatuses, wherein the spacer apparatuses are formed by integrally extending outwardly from the lateral sides of the lens carrier, and the spacer apparatuses protrude outwardly relative to positions of the upgoing driver and the downgoing driver in a direction perpendicular to an optical axis direction of the SMA driving device, wherein each bending member and each spacer apparatus are formed by integrally extending outwardly from each of lateral side surfaces of the lens carrier;
wherein each spacer apparatus is located between one bending member and an end of one SMA line, and at least one spacer apparatus and one bending member located on each lateral side surface which is parallel to the optical axis direction, and the spacer apparatuses limit the SMA lines of the upgoing driver and the downgoing driver from contacting an inner wall of a housing, which is used for receiving the SMA driving device.