US 12,066,602 B2
Optical imaging lens
Jia-Sin Jhang, Taichung (TW); Yanbin Chen, Xiamen (CN); and Feng Li, Xiamen (CN)
Assigned to Genius Electronic Optical (Xiamen) Co., Ltd., Xiamen (CN)
Filed by Genius Electronic Optical (Xiamen) Co., Ltd., Xiamen (CN)
Filed on Feb. 15, 2023, as Appl. No. 18/110,148.
Application 18/110,148 is a continuation of application No. 16/849,732, filed on Apr. 15, 2020, abandoned.
Claims priority of application No. 201911411953.6 (CN), filed on Dec. 31, 2019.
Prior Publication US 2023/0288672 A1, Sep. 14, 2023
Int. Cl. G02B 13/00 (2006.01); G02B 9/62 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 9/62 (2013.01)] 17 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 and a sixth lens element sequentially from an object side to an image side along an optical axis, each of the first, second, third, fourth, fifth and sixth 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:
the first lens element has positive refracting power;
an optical axis region of the image-side surface of the first lens element is convex;
the second lens element has negative refracting power;
the third lens element has negative refracting power;
an optical axis region of the image-side surface of the third lens element is concave;
the fourth lens element has negative refracting power;
an optical axis region of the object-side surface of the fourth lens element is convex;
the fifth lens element has positive refracting power;
the sixth lens element has negative refracting power;
an optical axis region of the object-side surface of the sixth lens element is concave;
an optical axis region of the image-side surface of the sixth lens element is concave;
lens elements having refracting power of the optical imaging lens consist of the six lens elements described above; and
a thickness of the third lens element along the optical axis is represented by T3, a thickness of the fourth lens element along the optical axis is represented by T4, a thickness of the fifth lens element along the optical axis is represented by T5, a thickness of the sixth lens element along the optical axis is represented by T6, a thickness of the first lens element along the optical axis is represented by T1, a distance from the object-side surface of the first lens element to an image plane along the optical axis is represented by TTL, a thickness of the second lens element along the optical axis is represented by T2, a distance from the image-side surface of the fifth lens element to the object-side surface of the sixth lens element along the optical axis is represented by G56, and the optical imaging lens satisfies the inequalities:
(T3+T4+T5+T6)/T1≤1.800 and TTL/(T2+T3+G56)≥6.000.