US 12,461,343 B2
Optical imaging lens
Hung-Chien Hsieh, Taichung (TW); Jiali Lian, Fujian (CN); Qingzhi Zhu, Fujian (CN); Huabin Liao, Fujian (CN); and Hai Lin, Fujian (CN)
Assigned to Genius Electronic Optical (Xiamen) Co., Ltd., Fujian (CN)
Filed by Genius Electronic Optical (Xiamen) Co., Ltd., Fujian (CN)
Filed on Mar. 25, 2021, as Appl. No. 17/211,830.
Claims priority of application No. 202110159404.5 (CN), filed on Feb. 5, 2021.
Prior Publication US 2022/0252833 A1, Aug. 11, 2022
Int. Cl. G02B 13/00 (2006.01); G02B 13/18 (2006.01); G02B 27/00 (2006.01)
CPC G02B 13/004 (2013.01) [G02B 13/18 (2013.01); G02B 27/0025 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An optical imaging lens, from an object side to an image side in order along an optical axis comprising: 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, when a surface of the lens element has at least one transition point, the transition point is a point on a surface of a lens element, at which the line tangent to that point is perpendicular to the optical axis, the region located radially outside of the farthest transition point from the optical axis to an optical boundary of the surface of the lens element is defined as a periphery region, 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, wherein:
the first lens element has negative refracting power;
the second lens element has positive refracting power;
a periphery region of the object-side surface of the third lens element is concave;
the fourth lens element has positive refracting power;
lens elements included by the optical imaging lens are only the four lens elements described above;
wherein at least two lens elements in the optical imaging lens have positive refracting power and thicknesses of the at least two lens elements along the optical axis are less than or equal to 250 microns, and the optical imaging lens satisfies the following relationships: V1+V2+V3+V4≥165.000 and (T2+G23)/T3≥1.800, wherein V1 is an Abbe number of the first lens element, V2 is an Abbe number of the second lens element, V3 is an Abbe number of the third lens element, and V4 is an Abbe number of the fourth lens element, T2 is a thickness of the second lens element along the optical axis, T3 is a thickness of the third lens element along the optical axis, G23 is an air gap between the second lens element and the third lens element along the optical axis.