	US 12,235,417 B2
	Optical photographing lens assembly comprising nine lenses of various refractive powers, image capturing unit and electronic device
Tzu-Chieh Kuo, Taichung (TW)
Assigned to LARGAN PRECISION CO., LTD., Taichung (TW)
Filed by LARGAN PRECISION CO., LTD., Taichung (TW)
Filed on Nov. 30, 2023, as Appl. No. 18/525,621.
Application 18/525,621 is a continuation of application No. 17/376,048, filed on Jul. 14, 2021, granted, now 11,885,937.
Application 17/376,048 is a continuation of application No. 16/525,411, filed on Jul. 29, 2019, granted, now 11,106,014, issued on Aug. 31, 2021.
Claims priority of application No. 108120724 (TW), filed on Jun. 14, 2019.
Prior Publication US 2024/0103253 A1, Mar. 28, 2024
Int. Cl. G02B 13/00 (2006.01); G02B 9/64 (2006.01)

CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01)]

20 Claims

1. An optical photographing lens assembly comprising nine lens elements, the nine 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, a seventh lens element, an eighth lens element and a ninth lens element; each of the nine lens elements having an object-side surface facing toward the object side and an image-side surface facing toward the image side;

wherein the image-side surface of the ninth lens element is aspheric and has one inflection point;

wherein an axial distance between the object-side surface of the first lens element and an image surface is TL, a focal length of the optical photographing lens assembly is f, an entrance pupil diameter of the optical photographing lens assembly is EPD, a maximum image height of the optical photographing lens assembly is ImgH, a central thickness of the first lens element is CT1, an axial distance between the first lens element and the second lens element is T12, and the following conditions are satisfied:

1.50 mm<TL<20.0 mm;

0.70<f/EPD<2.60;

0.60<TL/ImgH<3.20; and

1.0<CT1/T12≤3.83.