US 12,228,786 B2
Optical lens, imaging module and assembly method thereof
Chengchang Zheng, Yuyao (CN); Enlai Xiang, Yuyao (CN); and Kailun Zhou, Yuyao (CN)
Assigned to NINGBO SUNNY OPOTECH CO., LTD., Yuyao (CN)
Filed by NINGBO SUNNY OPOTECH CO., LTD., Yuyao (CN)
Filed on Feb. 19, 2021, as Appl. No. 17/180,220.
Application 17/180,220 is a continuation of application No. PCT/CN2019/098180, filed on Jul. 29, 2019.
Claims priority of application No. 201810953772.5 (CN), filed on Aug. 21, 2018; and application No. 201811188873.4 (CN), filed on Oct. 12, 2018.
Prior Publication US 2021/0173170 A1, Jun. 10, 2021
Int. Cl. G02B 7/02 (2021.01); G02B 7/00 (2021.01); G03B 17/12 (2021.01); H04N 5/225 (2006.01); H04N 23/55 (2023.01)
CPC G02B 7/025 (2013.01) [G02B 7/003 (2013.01); G02B 7/021 (2013.01); G03B 17/12 (2013.01); H04N 23/55 (2023.01)] 10 Claims
OG exemplary drawing
 
1. An optical lens, comprising:
a first lens member comprising a first lens barrel and at least one first lens mounted in the first lens barrel;
a second lens member comprising a second lens barrel and at least one second lens mounted in the second lens barrel, the at least one second lens together with the at least one first lens forming an imaging optical system; and
a first adhesive located in a first gap between the first lens member and the second lens member, the first adhesive supporting and fixing the first lens member and the second lens member after curing;
wherein a surface of the first lens barrel and/or a surface of the second lens barrel have at least one recess to absorb stress inside the optical lens through expansion and/or contraction;
wherein the first lens barrel has a first inner top surface and a second inner top surface, the first inner top surface is in contact with the first lens, the second inner top surface is not in contact with the first lens, and the recess is provided on the second inner top surface.