US 12,287,461 B2
Optical imaging lens assembly
Qiqi Lou, Zhejiang (CN); Fujian Dai, Zhejiang (CN); and Liefeng Zhao, Zhejiang (CN)
Assigned to ZHEJIANG SUNNY OPTICS CO., LTD, Zhejiang (CN)
Filed by ZHEJIANG SUNNY OPTICS CO., LTD, Zhejiang (CN)
Filed on Mar. 11, 2022, as Appl. No. 17/692,512.
Application 17/692,512 is a continuation of application No. PCT/CN2020/110043, filed on Aug. 19, 2020.
Claims priority of application No. 201910884125.8 (CN), filed on Sep. 19, 2019.
Prior Publication US 2022/0196990 A1, Jun. 23, 2022
Int. Cl. G02B 13/00 (2006.01); G02B 9/64 (2006.01); G02B 13/02 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01); G02B 13/02 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An optical imaging lens assembly, sequentially from an object side to an image side along an optical axis, comprising:
a first lens having a positive refractive power;
a second lens having a refractive power;
a third lens having a positive refractive power, an object-side surface of the third lens being convex;
a fourth lens having a refractive power;
a fifth lens having a refractive power, an image-side surface of the fifth lens being concave;
a sixth lens having a refractive power; and
a seventh lens having a refractive power,
wherein half of a diagonal length ImgH of an effective pixel area on an imaging plane of the optical imaging lens assembly and an entrance pupil diameter EPD of the optical imaging lens assembly satisfy: ImgH/EPD<0.7,
wherein the sequentially arranged first lens to the fifth lens are lenses arranged in a descending order of maximum effective radii, and a maximum effective radius D41 of an object-side surface of the fourth lens and a maximum effective radius D52 of the image-side surface of the fifth lens satisfy: 1.2<DT41/DT52<1.6.