Optical imaging lens assembly
The disclosure provides an optical imaging lens assembly, which sequentially includes from an object side to an image side along an optical axis: a first lens with a positive refractive power; a second lens with a refractive power; a third lens with a refractive power; a fourth lens with a refractive power; a fifth lens with a refractive power; a sixth lens with a positive refractive power; and a seventh lens with a refractive power; Semi-FOV is a half of a maximum field of view of the optical imaging lens assembly, and an effective focal length f of the optical imaging lens assembly and Semi-FOV satisfy f*tan(Semi-FOV)≥5.0 mm; a curvature radius R 11 of an object-side surface of the sixth lens, a curvature radius R 12 of an image-side surface of the sixth lens and the effective focal length f of the optical imaging lens assembly satisfy 5.0<f/R 11 +f/R 12 <7.0.
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 positive refractive power;
a second lens with a refractive power;
a third lens with a refractive power;
a fourth lens with a positive refractive power;
a fifth lens with a refractive power;
a sixth lens with a positive refractive power; and
a seventh lens with a negative refractive power; wherein
Semi-FOV is a half of a maximum field of view of the optical imaging lens assembly, and an effective focal length f of the optical imaging lens assembly and Semi-FOV satisfy f*tan(Semi-FOV)≥5.0 mm;
a curvature radius R 11 of an object-side surface of the sixth lens, a curvature radius R 12 of an image-side surface of the sixth lens and the effective focal length f of the optical imaging lens assembly satisfy 5.0<f/R 11 +f/R 12 <7.0; and
a curvature radius R 13 of an object-side surface of the seventh lens, a curvature radius R 14 of an image-side surface of the seventh lens and an effective focal length f 7 of the seventh lens satisfy f 7 /(R 13 −R 14 )≤−2.0.
2. The optical imaging lens assembly according to claim 1 , wherein the effective focal length f of the optical imaging lens assembly, a curvature radius R 1 of an object-side surface of the first lens and a curvature radius R 8 of an image-side surface of the fourth lens satisfy 1.0<f/R 1 +f/R 8 <2.0.
3. The optical imaging lens assembly according to claim 1 , wherein the effective focal length f of the optical imaging lens assembly and a curvature radius R 10 of an image-side surface of the fifth lens satisfy 0<f/R 10 <1.5.
4. The optical imaging lens assembly according to claim 1 , wherein the effective focal length f of the optical imaging lens assembly, a curvature radius R 3 of an object-side surface of the second lens and a curvature radius R 4 of an image-side surface of the second lens satisfy 1.4≤f/(R 3 −R 4 )<3.5.
5. The optical imaging lens assembly according to claim 1 , wherein the curvature radius R 11 of the object-side surface of the sixth lens, the curvature radius R 12 of the image-side surface of the sixth lens and a center thickness CT 6 of the sixth lens satisfy 2< (R 12 −R 11 )/CT 6 <4.5.
6. The optical imaging lens assembly according to claim 1 , wherein a center thickness CT 6 of the sixth lens and a center thickness CT 7 of the seventh lens satisfy 1≤CT 7 /CT 6 ≤2.1.
7. The optical imaging lens assembly according to claim 1 , wherein the effective focal length f of the optical imaging lens assembly and the effective focal length f 7 of the seventh lens satisfy −1.0<f/f 7 <−0.5.
8. The optical imaging lens assembly according to claim 1 , wherein an effective focal length f 1 of the first lens and a combined focal length f 12 of the first lens and the second lens satisfy 0.9≤f 12 /f 1 ≤1.5.
9. The optical imaging lens assembly according to claim 1 , wherein the effective focal length f of the optical imaging lens assembly and a combined focal length f 567 from the fifth lens to the seventh lens satisfy −0.5<f/f 567 <0.
10. The optical imaging lens assembly according to claim 1 , wherein the effective focal length f of the optical imaging lens assembly and an effective focal length f 4 of the fourth lens satisfy 0<f/f 4 <0.5.
11. The optical imaging lens assembly according to claim 1 , wherein an effective focal length f 6 of the sixth lens and the effective focal length f 7 of the seventh lens satisfy −1.5<f 6 /f 7 <−0.5.
12. The optical imaging lens assembly according to claim 1 , wherein Yc 61 is a critical point height of the object-side surface of the sixth lens closest to the optical axis, Yc 62 is a critical point height of the image-side surface of the sixth lens closest to the optical axis, and Yc 61 and Yc 62 satisfy 1<Yc 62 /Yc 61 <1.3.
13. The optical imaging lens assembly according to claim 1 , wherein YT 61 is a vector height of a critical point of the object-side surface of the sixth lens closest to the optical axis and YT 62 is a vector height of a critical point of the image-side surface of the sixth lens closest to the optical axis, and YT 61 and YT 62 satisfy 1<YT 62 /YT 61 <1.2.
14. The optical imaging lens assembly according to claim 1 , wherein ET 5 max is a maximum edge thickness of the fifth lens from the optical axis to an inflection point of an object-side surface of the fifth lens farthest from the optical axis, ET 5 min is a minimum edge thickness of the fifth lens from the optical axis to the inflection point of the object-side surface of the fifth lens farthest from the optical axis, and ET 5 max and ET 5 min satisfy (ET 5 max−ET 5 min)/ET 5 min≤0.25.
15. The optical imaging lens assembly according to claim 1 , wherein an abbe number V 4 of the fourth lens, an abbe number V 5 of the fifth lens, an abbe number V 6 of the sixth lens, and an abbe number V 7 of the seventh lens satisfy 0<(V 4 +V 6 +V 7 )/3−V 5 <20.
16. The optical imaging lens assembly according to claim 1 , wherein a focusing movement distance ΔT of the optical imaging lens assembly on the optical axis satisfies |ΔT|≤0.5 mm when a subject distance changes from an infinite distance to 8 centimeters.
17. An optical imaging lens assembly, sequentially comprising from an object side to an image side along an optical axis:
a first lens with a positive refractive power;
a second lens with a refractive power;
a third lens with a refractive power;
a fourth lens with a positive refractive power;
a fifth lens with a refractive power;
a sixth lens with a positive refractive power; and
a seventh lens with a negative refractive power; wherein
Semi-FOV is a half of a maximum field of view of the optical imaging lens assembly, and an effective focal length f of the optical imaging lens assembly and Semi-FOV satisfy f*tan(Semi-FOV)≥5.0 mm;
a curvature radius R 11 of an object-side surface of the sixth lens, a curvature radius R 12 of an image-side surface of the sixth lens and the effective focal length f of the optical imaging lens assembly satisfy 5.0<f/R 11 +f/R 12 <7.0; and
an air space T 23 between the second lens and the third lens on the optical axis, an air space T 45 between the fourth lens and the fifth lens on the optical axis and an air space T 67 between the sixth lens and the seventh lens on the optical axis satisfy 0< (T 67 −T 23 )/(T 67 −T 45 )≤1.3.