Patent ID: 11947186
Assignee: ZHEJIANG SUNNY OPTICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical imaging lens assembly, sequentially comprising, from an object side to an image side along an optical axis:
a first lens with a negative refractive power, an object-side surface thereof being a concave surface;
a second lens with a positive refractive power, an object-side surface thereof being a convex surface; and
a third lens with a positive refractive power, an object-side surface thereof being a convex surface while an image-side surface being a convex surface, the optical imaging lens assembly further comprises a diaphragm, the diaphragm is arranged between the second lens and the third lens,
wherein EPD is an entrance pupil diameter of the optical imaging lens assembly, and a total effective focal length f of the optical imaging lens assembly and EPD meet f/EPD<1.65; and
FOV is a maximum field of view of the optical imaging lens assembly, and FOV meets 125°<FOV<140°;
SL is a distance from the diaphragm to an imaging surface of the optical imaging lens assembly on the optical axis, TTL is a distance from the object-side surface of the first lens to the imaging surface of the optical imaging lens assembly on the optical axis, SL and TLL meet 2.0<TTL/SL<2.5;
TTL is a distance from the object-side surface of the first lens to an imaging surface of the optical imaging lens assembly on the optical axis, BFL is a distance from the image-side surface of the third lens to the imaging surface of the optical imaging lens assembly on the optical axis, TTL and BFL meet 2.7<TTL/BFL<3.4.