US 12,007,624 B2
Optical lens assembly
Dongfang Wang, Ningbo (CN); Bo Yao, Ningbo (CN); and Bao Zhou, Ningbo (CN)
Assigned to NINGBO SUNNY AUTOMOTIVE OPTECH CO., LTD, Ningbo (CN)
Filed by NINGBO SUNNY AUTOMOTIVE OPTECH CO., LTD, Ningbo (CN)
Filed on Oct. 27, 2020, as Appl. No. 17/081,191.
Application 17/081,191 is a continuation of application No. PCT/CN2019/079981, filed on Mar. 28, 2019.
Claims priority of application No. 201810400442.3 (CN), filed on Apr. 28, 2018; and application No. 201811249721.0 (CN), filed on Oct. 25, 2018.
Prior Publication US 2021/0041664 A1, Feb. 11, 2021
Int. Cl. G02B 9/62 (2006.01); G02B 13/18 (2006.01)
CPC G02B 9/62 (2013.01) [G02B 13/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical lens assembly, comprising:
a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, which are arranged sequentially from an object side to an image side along an optical axis,
wherein,
a total number of lenses comprised in the optical lens assembly is six;
an object-side surface of the first lens is a convex surface, and an image-side surface of the first lens is a concave surface;
the second lens has negative refractive power;
the third lens has positive refractive power;
the fourth lens has positive refractive power, and each of an object-side surface and an image-side surface of the fourth lens is convex surface;
the fifth lens has positive refractive power; and
the sixth lens has negative refractive power,
wherein TTL/F≤3.5,
where TTL is a total track length of the optical lens assembly, and F is a total focal length of the optical lens assembly.