Optical imaging lens assembly

Patent metadata

Field	Value
Publication number	US-12174348-B2
Application number	US-202117411079-A
Country	US
Kind code	B2
Filing date	Aug 25, 2021
Priority date	Sep 17, 2020
Publication date	Dec 24, 2024
Grant date	Dec 24, 2024

Abstract

The disclosure provide an optical imaging lens assembly, which sequentially includes from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens having refractive powers respectively; wherein the first lens, the third lens and the ninth lens have positive refractive powers respectively; the second lens and the tenth lens have negative refractive powers respectively; and f is a total effective focal length of the optical imaging lens assembly, and EPD is an entrance pupil diameter of the optical imaging lens assembly, f and EPD satisfy: f/EPD<1.5.

First claim

What is claimed is:

1. An optical imaging lens assembly with ten lenses, sequentially comprising from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens having refractive powers respectively; wherein
the first lens, the third lens, the seventh lens and the ninth lens have positive refractive powers respectively;
the second lens, the eighth lens and the tenth lens have negative refractive powers respectively;
the fourth lens, the fifth lens and the sixth lens have positive or negative refractive powers respectively; and
f is a total effective focal length of the optical imaging lens assembly and EPD is an entrance pupil diameter of the optical imaging lens assembly, f and EPD satisfy: f/EPD<1.5;
f78 is a combined focal length of the seventh lens and the eighth lens, and f56 is a combined focal length of the fifth lens and the sixth lens, f78 and f56 satisfy: −1.5<f78/f56<−0.3.

2. The optical imaging lens assembly with ten lenses as claimed in claim 1 , wherein f1 is an effective focal length of the first lens, and f3 is an effective focal length of the third lens, f1 and f3 satisfy: 0.7<(f1/f3)*10<3.7.

3. The optical imaging lens assembly with ten lenses as claimed in claim 1 , wherein f7 is an effective focal length of the seventh lens, R13 is a curvature radius of an object-side surface of the seventh lens, and R14 is a curvature radius of an image-side surface of the seventh lens, f7, R13 and R14 satisfy: 0.5<f7/(R14−R13)<3.3.

4. The optical imaging lens assembly with ten lenses as claimed in claim 1 , wherein f9 is an effective focal length of the ninth lens, and R17 is a curvature radius of an object-side surface of the ninth lens, f9 and R17 satisfy: 1.0<19/R17<1.5.

5. The optical imaging lens assembly with ten lenses as claimed in claim 1 , wherein f8 is an effective focal length of the eighth lens, and f10 is an effective focal length of the tenth lens, f8 and f10 satisfy: 2.8<f8/f10<5.3.

6. The optical imaging lens assembly with ten lenses as claimed in claim 1 , wherein CT9 is a center thickness of the ninth lens on the optical axis, and CT7 is a center thickness of the seventh lens on the optical axis, CT9 and CT7 satisfy: 1.2<CT9/CT7<1.7.

7. The optical imaging lens assembly with ten lenses as claimed in claim 1 , wherein T910 is a spacing distance between the ninth lens and the tenth lens on the optical axis, and T45 is a spacing distance between the fourth lens and the fifth lens on the optical axis, T910 and T45 satisfy: 2.0<T910/T45<2.6.

8. The optical imaging lens assembly with ten lenses as claimed in claim 1 , wherein f12 is a combined focal length of the first lens and the second lens, f12 and f satisfy: 2.0<f12/f<2.5.

9. The optical imaging lens assembly with ten lenses as claimed in claim 1 , wherein f1234 is a combined focal length of the first lens, the second lens, the third lens and the fourth lens, CT1 is a center thickness of the first lens on the optical axis, CT2 is a center thickness of the second lens on the optical axis, CT3 is a center thickness of the third lens on the optical axis, and CT4 is a center thickness of the fourth lens on the optical axis, f1234, CT1, CT2, CT3 and CT4 satisfy: 5.0<f1234/(CT1+CT2+CT3+CT4)<7.0.

10. The optical imaging lens assembly with ten lenses as claimed in claim 1 , wherein FOV is a maximum field of view of the optical imaging lens assembly, f and FOV satisfy: 4.5 mm<f*tan(FOV/2)<7.0 mm.

11. The optical imaging lens assembly with ten lenses as claimed in claim 1 , wherein a spacing distance is provided on the optical axis between any two adjacent lenses from the first lens to the tenth lens.

12. The optical imaging lens assembly with ten lenses as claimed in claim 1 , wherein an object-side surface of the third lens is a convex surface, and an image-side surface is a concave surface; and an object-side surface of the fourth lens is a convex surface, and an image-side surface is a concave surface.

13. An optical imaging lens assembly with ten lenses, sequentially comprising from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens having refractive powers respectively; wherein
the first lens, the third lens, the seventh lens and the ninth lens have positive refractive powers respectively;
the second lens, the eighth lens and the tenth lens have negative refractive powers respectively;
the fourth lens, the fifth lens and the sixth lens have positive or negative refractive powers respectively; and
f is a total effective focal length of the optical imaging lens assembly and FOV is a maximum field of view of the optical imaging lens assembly, f and FOV satisfy: 4.5 mm<f*tan(FOV/2)<7.0 mm;
f78 is a combined focal length of the seventh lens and the eighth lens, and f56 is a combined focal length of the fifth lens and the sixth lens, f78 and f56 satisfy: −1.5<f78/f56<−0.3.

14. The optical imaging lens assembly with ten lenses as claimed in claim 13 , wherein f1 is an effective focal length of the first lens, and f3 is an effective focal length of the third lens, f1 and f3 satisfy: 0.7<(f1/f3)*10<3.7.

15. The optical imaging lens assembly with ten lenses as claimed in claim 13 , wherein f7 is an effective focal length of the seventh lens, R13 is a curvature radius of an object-side surface of the seventh lens, and R14 is a curvature radius of an image-side surface of the seventh lens, f7, R13 and R14 satisfy: 0.5<f7/(R14−R13)<3.3.

16. The optical imaging lens assembly with ten lenses as claimed in claim 13 , wherein f9 is an effective focal length of the ninth lens, and R17 is a curvature radius of an object-side surface of the ninth lens, f9 and R17 satisfy: 1.0<f9/R17<1.5.

17. The optical imaging lens assembly with ten lenses as claimed in claim 13 , wherein f8 is an effective focal length of the eighth lens, and f10 is an effective focal length of the tenth lens, f8 and f10 satisfy: 2.8<f8/f10<5.3.

18. The optical imaging lens assembly with ten lenses as claimed in claim 13 , wherein CT9 is a center thickness of the ninth lens on the optical axis, and CT7 is a center thickness of the seventh lens on the optical axis, CT9 and CT7 satisfy: 1.2<CT9/CT7<1.7.

Assignees

• Zhejiang Sunny Optics Co Ltd

Inventors

• Lu Jia
• Wang Binqing
• Yang Meng
• Dai Fujian
• Zhao Liefeng

Classifications

• G02B27/0025

  for optical correction, e.g. distorsion, aberration · CPC title

• G02B9/64 Primary

  having more than six components · CPC title

• G02B13/04

  Reversed telephoto objectives · CPC title

• G02B13/0045 Primary

  having five or more lenses · CPC title

• G02B13/18

  with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration {(G02B13/002 takes precedence)} · CPC title