US 12,222,467 B2
Optical imaging lens
Huabin Liao, Fujian (CN); Hai Lin, Fujian (CN); Ou Zhou, Fujian (CN); and Lanlan Zhang, Fujian (CN)
Assigned to Genius Electronic Optical (Xiamen) Co., Ltd., Fujian (CN)
Filed by Genius Electronic Optical (Xiamen) Co., Ltd., Fujian (CN)
Filed on Oct. 5, 2023, as Appl. No. 18/376,836.
Application 18/376,836 is a continuation of application No. 17/211,834, filed on Mar. 25, 2021, granted, now 11,815,660.
Claims priority of application No. 202110167267.X (CN), filed on Feb. 5, 2021.
Prior Publication US 2024/0111131 A1, Apr. 4, 2024
Int. Cl. G02B 13/04 (2006.01); G02B 9/34 (2006.01); G02B 13/00 (2006.01)
CPC G02B 13/004 (2013.01) [G02B 9/34 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical imaging lens, from an object side to an image side in order along an optical axis comprising: four lens elements, the four lens elements include a first lens element, a second lens element, a third lens element and a fourth lens element, the first lens element to the fourth lens element each having an object-side surface facing toward the object side and allowing imaging rays to pass through as well as an image-side surface facing toward the image side and allowing the imaging rays to pass through, wherein:
an optical axis region of the object-side surface of the second lens element is convex, or a periphery region of the object-side surface of the second lens element is convex;
a periphery region of the image-side surface of the second lens element is convex;
an optical axis region of the image-side surface of the fourth lens element is convex;
lens elements included by the optical imaging lens are only the four lens elements described above, wherein HFOV is a half field of view of the optical imaging lens, EFL is an effective focal length of the optical imaging lens, TL is a distance from the object-side surface of the first lens element to the image-side surface of the fourth lens element along the optical axis, and the optical imaging lens satisfies the relationship: HFOV/(EFL+TL)≥35.000 degrees/mm, wherein the lens element includes at least one transition point, the line tangent to the transition point is perpendicular to the optical axis, when a surface of the lens element has at least one transition point, the periphery region is defined as a region located radially outside of the farthest transition point from the optical axis to an optical boundary of the surface of the lens element, and when a surface of the lens element has no transition point, the periphery region is defined as a region of 50%-100% of the distance between the optical axis and the optical boundary of the surface of the lens element.