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

Claim 10:
11. 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 2.5<R2/R1<3.5,
where R2 is a radius of curvature of an image-side surface of the first lens, and R1 is a radius of curvature of an object-side surface of the first lens, 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.