Optical imaging lens assembly
The present disclosure provides an optical imaging lens assembly, along an optical axis from an object side to an image side, sequentially includes: a first lens having positive refractive power; an autofocus component; a second lens having a refractive power; a third lens having a refractive power; a fourth lens having a refractive power; and at least one subsequent lens having a refractive power. At least one surface from an object-side surface of the first lens to an image-side surface of the at least one subsequent lens is an aspheric surface; the first lens and the autofocus component are cemented together; and a radius of curvature of an image-side surface of the autofocus component is variable.
1 . An optical imaging lens assembly, along an optical axis from an object side to an image side, sequentially comprising:
a first lens having a positive refractive power, and an image-side surface of the first lens is a flat surface;
an autofocus component having a refractive power;
a second lens having a refractive power;
a third lens having a refractive power;
a fourth lens having a refractive power; and
at least one subsequent lens having a refractive power;
wherein the first lens and the autofocus component are cemented together;
a radius of curvature of an image-side surface of the autofocus component is variable;
a distance TTL from an object-side surface of the first lens to an imaging plane of the optical imaging lens assembly on the optical axis, a sum of center thicknesses D of the autofocus component and the first lens on the optical axis, and a center thickness CT1 of the first lens on the optical axis satisfy: 3.0<TTL/(D+CT1)<4.0; and
at least one surface from an object-side surface of the first lens to an image-side surface of the at least one subsequent lens is an aspheric surface.
2 . The optical imaging lens assembly according to claim 1 , wherein an effective focal length f4 of the fourth lens and a radius of curvature R8 of an image-side surface of the fourth lens satisfy: −6.5<f4/R8<−1.0.
3 . The optical imaging lens assembly according to claim 1 , wherein a radius of curvature R3 of an object-side surface of the second lens and a radius of curvature R4 of an image-side surface of the second lens satisfy: 4.0<R3/R4<7.0.
4 . The optical imaging lens assembly according to claim 1 , wherein the at least one subsequent lens includes a fifth lens, and a radius of curvature R9 of an object-side surface of the fifth lens and a radius of curvature R10 of an image-side surface of the fifth lens satisfy: 0.5<|R9/R10|<3.5.
5 . The optical imaging lens assembly according to claim 1 , wherein the sum of center thicknesses D of the autofocus component and the first lens on the optical axis and a sum of center thicknesses ΣCT of all lenses from the first lens to the at least one subsequent lens on the optical axis satisfy: 2.0<ΣCT/D<3.5.
6 . The optical imaging lens assembly according to claim 1 , wherein the at least one subsequent lens includes a fifth lens, and a center thickness CT4 of the fourth lens on the optical axis and a center thickness CT5 of the fifth lens on the optical axis satisfy: 0.5<CT4/CT5<2.5.
7 . The optical imaging lens assembly according to claim 1 , wherein a center thickness CT3 of the third lens on the optical axis and a center thickness CT2 of the second lens on the optical axis satisfy: 1.0<CT3/CT2<1.5.
8 . The optical imaging lens assembly according to claim 1 , wherein a spaced interval T34 between the third lens and the fourth lens on the optical axis and a spaced interval T T-2 between the autofocus component and the second lens on the optical axis satisfy: 1.0<T34/T T-2 <3.5.
9 . The optical imaging lens assembly according to claim 1 , wherein the distance TTL from the object-side surface of the first lens to the imaging plane of the optical imaging lens assembly on the optical axis, and a half of a diagonal length ImgH of an effective pixel area on the imaging plane of the optical imaging lens assembly satisfy: 1.5<TTL/ImgH<2.0.
10 . The optical imaging lens assembly according to claim 1 , wherein the sum of center thicknesses D of the autofocus component and the first lens on the optical axis and a sum of center thicknesses ΣCT of all lenses from the first lens to the at least one subsequent lens on the optical axis satisfy: 2.58≤ΣCT/D<3.5.
11 . The optical imaging lens assembly according to claim 1 , wherein an effective focal length f2 of the second lens and an effective focal length f3 of the third lens satisfy: 1.0<f3/f2<4.5.
12 . The optical imaging lens assembly according to claim 1 , wherein a center thickness CT3 of the third lens on the optical axis and a center thickness CT2 of the second lens on the optical axis satisfy: 1.16≤CT3/CT2<1.5.
13 . The optical imaging lens assembly according to claim 1 , wherein the at least one subsequent lens includes a fifth lens, and a center thickness CT4 of the fourth lens on the optical axis and a center thickness CT5 of the fifth lens on the optical axis satisfy: 0.5<CT4/CT5≤2.18.
14 . The optical imaging lens assembly according to claim 1 , wherein a spaced interval T34 between the third lens and the fourth lens on the optical axis and a spaced interval TT-2 between the autofocus component and the second lens on the optical axis satisfy: 1.53≤T34/TT-2<3.5.
15 . The optical imaging lens assembly according to claim 1 , wherein the second lens has a negative refractive power, the third lens has a negative refractive power, and the fourth lens has a positive refractive power.