US 12,474,546 B2
Optical imaging lens assembly
Jianke Wenren, Yuyao Zhejiang (CN); Fujian Dai, Yuyao Zhejiang (CN); and Liefeng Zhao, Yuyao Zhejiang (CN)
Assigned to ZHEJIANG SUNNY OPTICS CO., LTD., Yuyao Zhejiang (CN)
Filed by ZHEJIANG SUNNY OPTICS CO., LTD., Yuyao Zhejiang (CN)
Filed on Dec. 20, 2021, as Appl. No. 17/555,906.
Claims priority of application No. 202110097187.1 (CN), filed on Jan. 25, 2021.
Prior Publication US 2022/0236524 A1, Jul. 28, 2022
Int. Cl. G02B 9/64 (2006.01); G02B 13/00 (2006.01)
CPC G02B 9/64 (2013.01) [G02B 13/0045 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An optical imaging lens assembly, along an optical axis from an object side to an image side sequentially comprising:
a first lens having negative refractive power;
a second lens having positive refractive power;
a third lens;
a fourth lens having positive refractive power;
a fifth lens having negative refractive power;
a sixth lens having positive refractive power; and
a seventh lens;
wherein, a maximum field-of-view FOV of the optical imaging lens assembly satisfies: tan (FOV/3)≥0.9;
a total effective focal length f of the optical imaging lens assembly, a radius of curvature R9 of an object-side surface of the fifth lens, and a radius of curvature R10 of an image-side surface of the fifth lens satisfy: −3.0<(f/R9)+(f/R10)<−1.5; and
the total effective focal length f of the optical imaging lens assembly, a radius of curvature R5 of an object-side surface of the third lens, and a radius of curvature R6 of an image-side surface of the third lens satisfy: −2.0<(f/R5)+(f/R6)≤−1.4.