US 11,885,939 B2
Photographing optical lens assembly, image capturing apparatus and electronic device
Chun-Che Hsueh, Taichung (TW); and Wei-Yu Chen, Taichung (TW)
Assigned to LARGAN PRECISION CO., LTD., Taichung (TW)
Filed by LARGAN PRECISION CO., LTD., Taichung (TW)
Filed on Nov. 8, 2021, as Appl. No. 17/520,873.
Application 17/520,873 is a continuation of application No. 16/507,281, filed on Jul. 10, 2019, granted, now 11,194,128.
Claims priority of application No. 108102230 (TW), filed on Jan. 21, 2019.
Prior Publication US 2022/0057609 A1, Feb. 24, 2022
Int. Cl. G02B 13/00 (2006.01); G02B 27/00 (2006.01); G02B 5/20 (2006.01); G02B 7/02 (2021.01); H04N 23/55 (2023.01)
CPC G02B 13/0045 (2013.01) [G02B 5/20 (2013.01); G02B 7/021 (2013.01); G02B 27/0025 (2013.01); H04N 23/55 (2023.01)] 24 Claims
OG exemplary drawing
 
1. A photographing optical lens assembly comprising seven lens elements, the seven lens elements being, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, and a seventh lens element; each of the seven lens elements comprising an object-side surface facing toward the object side and an image-side surface facing toward the image side;
wherein the third lens element has positive refractive power, the image-side surface of the third lens element is convex in a paraxial region thereof, the object-side surface of the seventh lens element is convex in a paraxial region thereof, the image-side surface of the seventh lens element is concave in a paraxial region thereof and has at least one critical point in an off-axis region thereof, the object-side surface and the image-side surface of the seventh lens element are both aspheric, a central thickness of the first lens element is larger than a central thickness of the second lens element;
wherein an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, an axial distance between the object-side surface of the first lens element and an image surface is TL, a focal length of the photographing optical lens assembly is f, a maximum image height of the photographing optical lens assembly is ImgH, and the following conditions are satisfied:
20<V4+V5<75;
1.69≤TL/f<3.0; and
0.70<TL/ImgH≤1.48.