US 12,147,015 B2
Optical imaging lens assembly
Liefeng Zhao, Zhejiang (CN); Lin Huang, Zhejiang (CN); and Fujian Dai, Zhejiang (CN)
Assigned to ZHEJIANG SUNNY OPTICS CO., LTD., Ningbo (CN)
Filed by ZHEJIANG SUNNY OPTICS CO.,LTD., Zhejiang (CN)
Filed on May 28, 2021, as Appl. No. 17/333,023.
Claims priority of application No. 202010745832.1 (CN), filed on Jul. 29, 2020.
Prior Publication US 2022/0035136 A1, Feb. 3, 2022
Int. Cl. G02B 13/00 (2006.01); G01D 5/26 (2006.01); G02B 5/20 (2006.01); G02B 15/14 (2006.01); G02B 27/00 (2006.01)
CPC G02B 13/0045 (2013.01) [G01D 5/26 (2013.01); G02B 5/20 (2013.01); G02B 15/14 (2013.01); G02B 27/0025 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An optical imaging lens assembly, sequentially comprising from an object side to an image side along an optical axis:
a first lens group with a positive refractive power, comprising a first lens with a refractive power;
a second lens group, sequentially comprising from the object side to the image side along the optical axis: a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens with refractive power respectively;
an optical filter; and
a photosensitive element;
wherein at least one of the first lens to the sixth lens is arranged to be movable relative to the photosensitive element in a direction of the optical axis; effective semi-diameters of each lens in the second lens to the sixth lens progressively increase in sequence; and
a maximum effective semi-diameter DT51 of an object-side surface of the fifth lens and a maximum effective semi-diameter DT32 of an image-side surface of the third lens may satisfy: 1.5<DT51/DT32<2.5;
an on-axis distance SAG52 from an intersection point of an image-side surface of the fifth lens and the optical axis to an effective radius vertex of the image-side surface of the fifth lens and a maximum effective semi-diameter DT52 of the image-side surface of the fifth lens satisfy: −0.3<SAG52/DT52<0;
an effective focal length f5 of the fifth lens and an effective focal length f6 of the sixth lens satisfy: −2<f5/f6 <−0.5.