Patent ID: 11899168
Assignee: ZHEJIANG SUNNY OPTICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical imaging lens assembly, sequentially from an object side to an image side of the optical imaging lens assembly along an optical axis, comprising:
a first lens having positive refractive power;
a second lens having positive refractive power and a convex object-side surface; and
a third lens having negative refractive power,
wherein 2.0<TTL/ImgH<2.5,
where TTL is a distance along the optical axis from an object-side surface of the first lens to an imaging plane of the optical imaging lens assembly, and ImgH is half of a diagonal length of an effective pixel area on the imaging plane, and
wherein 0.5<(CT1+CT2+CT3)/T23<1.5,
where CT1 is a center thickness of the first lens along the optical axis, CT2 is a center thickness of the second lens along the optical axis, CT3 is a center thickness of the third lens along the optical axis, and T23 is a spaced interval between the second lens and the third lens along the optical axis.