US 12,313,819 B2
Optical imaging lens assembly, image capturing unit and electronic device
Po-Lun Hsu, Taichung (TW); and Tzu-Chieh Kuo, Taichung (TW)
Assigned to LARGAN PRECISION CO., LTD., Taichung (TW)
Filed by LARGAN PRECISION CO., LTD., Taichung (TW)
Filed on May 12, 2022, as Appl. No. 17/743,326.
Application 17/743,326 is a division of application No. 16/557,692, filed on Aug. 30, 2019, granted, now 11,366,294.
Claims priority of application No. 108125241 (TW), filed on Jul. 17, 2019.
Prior Publication US 2022/0269047 A1, Aug. 25, 2022
Int. Cl. G02B 15/14 (2006.01); G02B 3/14 (2006.01); G02B 7/04 (2021.01); G02B 9/34 (2006.01); G02B 13/00 (2006.01); G02B 27/64 (2006.01)
CPC G02B 13/004 (2013.01) [G02B 3/14 (2013.01); G02B 7/04 (2013.01); G02B 9/34 (2013.01); G02B 27/64 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An optical imaging lens assembly, comprising:
a focus tunable component; and
an imaging lens system comprising, in order from an object side to an image side, a first lens group and a second lens group, wherein the first lens group comprises, in order from the object side to the image side, an object-side first lens element and an object-side second lens element, the second lens group comprises, in order from the image side to the object side, an image-side first lens element and an image-side second lens element, and each of all lens elements in the imaging lens system has an object-side surface facing toward the object side and an image-side surface facing toward the image side;
wherein at least one lens surface of at least one lens element in the imaging lens system is aspheric and has at least one inflection point, the imaging lens system has a total of at least seven lens elements, the lens elements of the first lens group are closer to the object side than other lens elements in the imaging lens system, and the lens elements of the second lens group are closer to the image side than other lens elements in the imaging lens system;
wherein each of at least three lens elements in the imaging lens system has an Abbe number smaller than 40.0;
wherein an axial distance between the image-side first lens element and the image-side second lens element is DLr1Lr2, a central thickness of the image-side first lens element is CTLr1, a focal length of the optical imaging lens assembly is f, and a focal length of the focus tunable component is ft, and the following conditions are satisfied:

OG Complex Work Unit Math