US 12,228,706 B2
Optical imaging lens
Chuanbo Dong, Xiamen (CN); Wenbin Lin, Xiamen (CN); and Qingzhi Zhu, Xiamen (CN)
Assigned to Genius Electronic Optical (Xiamen) Co., Ltd., Xiamen (CN)
Filed by Genius Electronic Optical (Xiamen) Co., Ltd., Xiamen (CN)
Filed on Jun. 7, 2023, as Appl. No. 18/330,937.
Application 18/330,937 is a continuation of application No. 16/821,725, filed on Mar. 17, 2020, granted, now 11,709,339.
Claims priority of application No. 201911327929.4 (CN), filed on Dec. 20, 2019.
Prior Publication US 2024/0134156 A1, Apr. 25, 2024
Int. Cl. G02B 13/00 (2006.01); G02B 9/64 (2006.01); G02B 27/00 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01); G02B 27/0025 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An optical imaging lens, comprising a first element, a second element, a third element, a fourth element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element sequentially from an object side to an image side along an optical axis, each of the first, second, third, fourth, fifth, sixth, seventh and eighth lens element having an object-side surface facing toward the object side and allowing imaging rays to pass through and an image-side surface facing toward the image side and allowing the imaging rays to pass through, wherein:
a periphery region of the image-side surface of the second lens element is concave;
an optical axis region of the image-side surface of the third lens element is concave or a periphery region of the object-side surface of the fourth lens element is concave;
an optical axis region of the image-side surface of the fourth lens element is convex;
a periphery region of the object-side surface of the fifth lens element is concave;
a periphery region of the object-side surface of the seventh lens element is concave;
lens elements of the optical imaging lens consist of the eight lens elements described above; and
a distance from the object-side surface of the first lens element to an image plane along the optical axis is represented by TTL, an image height of the optical imaging lens is represented by ImgH, a distance from the object-side surface of the first lens element to the image-side surface of the eighth lens element along the optical axis is represented by TL, a f-number of the optical imaging lens is represented by Fno, a distance from the image-side surface of the fourth lens element to the object-side surface of the seventh lens element along the optical axis is represented by D42t71, and the optical imaging lens satisfies the inequalities:
TTL/ImgH≤1.500;
TL*Fno/ImgH≤2.500; and
TTL/D42t71≤4.500.