US 11,815,660 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 Mar. 25, 2021, as Appl. No. 17/211,834.
Claims priority of application No. 202110167267.X (CN), filed on Feb. 5, 2021.
Prior Publication US 2022/0252834 A1, Aug. 11, 2022
Int. Cl. G02B 13/04 (2006.01); G02B 13/00 (2006.01); G02B 9/34 (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: 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:
the first lens element has negative refracting power, and an optical axis region of the object-side surface of the first lens element is convex;
the third lens has negative refracting power, and an optical axis region of the image-side surface of the third lens element is concave;
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, and the optical imaging lens satisfies the following relationships: Tmax+Tmin≤700.000 μm, wherein Tmax is the maximum value of thicknesses of the four lens elements from the first lens element to the fourth lens element along the optical axis, Tmin is the minimum value of thicknesses of the four lens elements from the first lens element to the fourth lens element along the optical axis.