Optical imaging lens assembly
AssigneeZhejiang Sunny Optics Co., Ltd.
InventorsYabin Hu, Fujian Dai, Liefeng Zhao
Life of this patent
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Abstract
The present disclosure provides an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, 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. A distance TTL along the optical axis from an object-side surface of the first lens to an imaging plane of the optical imaging lens assembly and half of a diagonal length ImgH of an effective pixel area on the imaging plane satisfy 2.0<TTL/ImgH<2.5.
Claims18
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.
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.
Dependencies are inferred from the claim text.