US 12,436,366 B2
Photographing optical lens assembly, image capturing unit and electronic device
Yu Jui Lin, Taichung (TW); Yu-Tai Tseng, Taichung (TW); Wei-Xiang Fu, Taichung (TW); Cheng-Yu Tsai, Taichung (TW); and Hsin-Hsuan Huang, Taichung (TW)
Assigned to LARGAN PRECISION CO., LTD., Taichung (TW)
Filed by LARGAN PRECISION CO., LTD., Taichung (TW)
Filed on Aug. 31, 2022, as Appl. No. 17/900,674.
Claims priority of application No. 111125695 (TW), filed on Jul. 8, 2022.
Prior Publication US 2024/0012223 A1, Jan. 11, 2024
Int. Cl. G02B 9/60 (2006.01); G02B 13/00 (2006.01); H04N 23/54 (2023.01)
CPC G02B 9/60 (2013.01) [G02B 13/0045 (2013.01); G02B 13/0065 (2013.01); H04N 23/54 (2023.01)] 28 Claims
OG exemplary drawing
 
1. A photographing optical lens assembly comprising five lens elements, the five lens elements being, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element;
wherein a total number of lens elements of the photographing optical lens assembly is five, the first lens element has positive refractive power, and the second lens element has negative refractive power;
wherein an Abbe number of the second lens element is V2, an Abbe number of the third lens element is V3, an Abbe number of the fourth lens element is V4, a sum of central thicknesses of all lens elements of the photographing optical lens assembly is ΣCT, a sum of axial distances between each of all adjacent lens elements of the photographing optical lens assembly is ΣAT, a central thickness of the first lens element is CT1, a central thickness of the second lens element is CT2, a central thickness of the fourth lens element is CT4, a central thickness of the fifth lens element is CT5, an axial distance between an object-side surface of the first lens element and an image-side surface of the fifth lens element is TD, an axial distance between the image-side surface of the fifth lens element and an image surface is BL, an axial distance between the object-side surface of the first lens element and the image surface is TL, a maximum image height of the photographing optical lens assembly is ImgH, an axial distance between the third lens element and the fourth lens element is T34, and the following conditions are satisfied:
30<V2+V3+V4<93;
0.5<ΣCT/ΣAT<2.5;
1.8<(CT1+CT2)/(CT4+CT5)<5.0;
0.1<TD/BL<1.1;
1.0<TL/ImgH<4.2; and
0.01<CT4/T34<4.0.