US 12,147,018 B2
Optical imaging lens
Jia-Sin Jhang, Taichung (TW); Maozong Lin, Fujian (CN); and Feng Li, Fujian (CN)
Assigned to GENIUS ELECTRONIC OPTICAL (XIAMEN) CO., LTD., Fujian (CN)
Filed by GENIUS ELECTRONIC OPTICAL (XIAMEN) CO., LTD., Fujian (CN)
Filed on Feb. 2, 2023, as Appl. No. 18/163,294.
Application 18/163,294 is a continuation of application No. 17/123,135, filed on Dec. 16, 2020, granted, now 11,598,937.
Application 17/123,135 is a continuation of application No. 16/532,502, filed on Aug. 6, 2019, granted, now 10,901,187, issued on Jan. 26, 2021.
Application 16/532,502 is a continuation of application No. 15/917,840, filed on Mar. 12, 2018, granted, now 10,429,621, issued on Oct. 1, 2019.
Claims priority of application No. 201711477961.1 (CN), filed on Dec. 29, 2017.
Prior Publication US 2023/0273406 A1, Aug. 31, 2023
Int. Cl. G02B 13/00 (2006.01); G02B 3/04 (2006.01); G02B 9/64 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 3/04 (2013.01); G02B 9/64 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical imaging lens, comprising a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element arranged in sequence from an object side to an image side along an optical axis, each of the first lens element through the eighth lens element having an object-side surface facing the object side and allowing image rays to pass through as well as an image-side surface facing the image side and allowing the imaging rays to pass through,
wherein:
a periphery region of the image-side surface of the first lens element is concave;
an optical axis region of the image-side surface of the seventh lens element is concave, and a periphery region of the image-side surface of the seventh lens element is convex;
an optical axis region of the object-side surface of the eighth lens element is concave;
wherein lens elements of the optical imaging lens are only the eight lens elements described above, and the optical imaging lens satisfies the condition expression: (T2+T8+G67)/G78≤2.500,
wherein T2 is a thickness of the second lens element along the optical axis, T8 is a thickness of the eighth lens element along the optical axis, G67 is an air gap between the sixth lens element and the seventh lens element along the optical axis, and G78 is an air gap between the seventh lens element and the eighth lens element along the optical axis.