Optical imaging lens including seven lenses of +−+−−+−, +−+−++−or +−−−++− refractive powers

Patent metadata

Field	Value
Publication number	US-12345856-B2
Application number	US-202217718336-A
Country	US
Kind code	B2
Filing date	Apr 12, 2022
Priority date	Dec 8, 2021
Publication date	Jul 1, 2025
Grant date	Jul 1, 2025

Abstract

An optical imaging lens includes a first lens element to a seventh lens element, and each lens element has an object-side surface and an image-side surface. The second lens element has negative refracting power, and a periphery region of the object-side surface of the second lens element is convex, a periphery region of the object-side surface of the third lens element is concave, the fourth lens element has negative refracting power, an optical axis region of the object-side surface of the fourth lens element is concave, an optical axis region of the image-side surface of the fifth lens element is concave, and an optical axis region of the image-side surface of the sixth lens element is convex. Lens elements included by the optical imaging lens are only the seven lens elements mentioned above, and the following relationships: V 2 +V 3 +V 5 ≥120.000 and (T 1 +L 4 IL 7 I)/(T 2 +G 23 +T 3 )≥3.000 are satisfied.

First claim

What is claimed is:

1. An optical imaging lens, from an object side to an image side in order along an optical axis comprising: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element, the first lens element to the seventh lens element each having an object-side surface facing toward the object side and allowing imaging rays to pass through as well as an image-side surface facing toward the image side and allowing the imaging rays to pass through, wherein:
the second lens element has negative refracting power, an optical axis region of the object-side surface of the second lens element is convex, and a periphery region of the object-side surface of the second lens element is convex;
a periphery region of the object-side surface of the third lens element is concave;
the fourth lens element has negative refracting power, and an optical axis region of the object-side surface of the fourth lens element is concave;
an optical axis region of the image-side surface of the fifth lens element is concave;
an optical axis region of the image-side surface of the sixth lens element is convex;
a periphery region of the object-side surface of the seventh lens element is convex;
wherein lens elements included by the optical imaging lens are only the seven lens elements described above, and wherein the optical imaging lens satisfies the relationships: V2+V3+V5>120.000 and (T1+L 4 IL 71 )/(T2+G23+T 3 )≥3.3003.000, wherein V 2 is an Abbe number of the second lens element, V 3 is an Abbe number of the third lens element, V 5 is an Abbe number of the fifth lens element, T 1 is a thickness of the first lens element along the optical axis, T 2 is a thickness of the second lens element along the optical axis, T 3 is a thickness of the third lens element along the optical axis, G 23 is an air gap between the second lens element and the third lens element along the optical axis, L 4 IL 71 is defined as a distance from the image-side surface of the fourth lens element to the image-side surface of the seventh lens element along the optical axis.

2. The optical imaging lens of claim 1 , wherein ImgH is an image height of the optical imaging lens, Fno is a f-number of the optical imaging lens, and the optical imaging lens satisfies the relationship: ImgH/Fno>3.200 mm.

3. The optical imaging lens of claim 1 , wherein ImgH is an image height of the optical imaging lens, Fno is a f-number of the optical imaging lens, EFL is an effective focal length of the optical imaging lens, and the optical imaging lens satisfies the relationship: (EFL+ImgH)/Fno_6.500 mm.

4. The optical imaging lens of claim 1 , wherein V 7 is an Abbe number of the seventh lens element, and the optical imaging lens satisfies the relationship: V2+V3+V7≥120.000.

5. The optical imaging lens of claim 1 , wherein V 7 is an Abbe number of the seventh lens element, and the optical imaging lens satisfies the relationship: V2+V5+V7≥120.000.

6. The optical imaging lens of claim 1 , wherein G 34 is an air gap between the third lens element and the fourth lens element along the optical axis, G 45 is an air gap between the fourth lens element and the fifth lens element along the optical axis, G 56 is an air gap between the fifth lens element and the sixth lens element along the optical axis, and the optical imaging lens satisfies the relationship: (G45+G 56 )/G34>2.800.

7. The optical imaging lens of claim 1 , wherein G 34 is an air gap between the third lens element and the fourth lens element along the optical axis, G 45 is an air gap between the fourth lens element and the fifth lens element along the optical axis, G 56 is an air gap between the fifth lens element and the sixth lens element along the optical axis, and the optical imaging lens satisfies the relationship: (G34+G 56 )/G45≤2.800.

8. An optical imaging lens, from an object side to an image side in order along an optical axis comprising: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element, the first lens element to the seventh lens element each having an object-side surface facing toward the object side and allowing imaging rays to pass through as well as an image-side surface facing toward the image side and allowing the imaging rays to pass through, wherein:
the second lens element has negative refracting power, and an optical axis region of the object-side surface of the second lens element is convex;
a periphery region of the object-side surface of the third lens element is concave;
the fourth lens element has negative refracting power, and an optical axis region of the object-side surface of the fourth lens element is concave;
an optical axis region of the image-side surface of the fifth lens element is concave;
an optical axis region of the image-side surface of the sixth lens element is convex;
an optical axis region of the object-side surface of the seventh lens element is concave, and a periphery region of the object-side surface of the seventh lens element is convex;
wherein lens elements included by the optical imaging lens are only the seven lens elements described above, and wherein the optical imaging lens satisfies the relationships: V2+V3+V5>120.000 and (T1+L 4 IL 7 I)/(T2+G23+T 3 )≥3.3003.000, wherein V 2 is an Abbe number of the second lens element, V 3 is an Abbe number of the third lens element, V 5 is an Abbe number of the fifth lens element, T 1 is a thickness of the first lens element along the optical axis, T 2 is a thickness of the second lens element along the optical axis, T 3 is a thickness of the third lens element along the optical axis, G 23 is an air gap between the second lens element and the third lens element along the optical axis, L 4 IL 71 is defined as a distance from the image-side surface of the fourth lens element to the image-side surface of the seventh lens element along the optical axis.

9. The optical imaging lens of claim 8 , wherein G 34 is an air gap between the third lens element and the fourth lens element along the optical axis, G 45 is an air gap between the fourth lens element and the fifth lens element along the optical axis, and the optical imaging lens satisfies the relationship: (T2+G 45 )/G34≤3.500.

10. The optical imaging lens of claim 8 , wherein T 5 is a thickness of the fifth lens element along the optical axis, T 6 is a thickness of the sixth lens element along the optical axis, G 12 is an air gap between the first lens element and the second lens element along the optical axis, G 45 is an air gap between the fourth lens element and the fifth lens element along the optical axis, G 56 is an air gap between the fifth lens element and the sixth lens element along the optical axis, G 67 is an air gap between the sixth lens element and the seventh lens element along the optical axis, and the optical imaging lens satisfies the relationship: (T5+G56+T6+G 67 )/(G12+G 45 )≥4.800.

11. The optical imaging lens of claim 8 , wherein AAG is a sum of six air gaps from the first lens element to the seventh lens element along the optical axis, G 12 is an air gap between the first lens element and the second lens element along the optical axis, and the optical imaging lens satisfies the relationship: AAG/(T1+G 12 )≤2.800.

12. The optical imaging lens of claim 8 , wherein ALT is a sum of thicknesses of all the seven lens elements along the optical axis, T 6 is a thickness of the sixth lens element along the optical axis, G 56 is an air gap between the fifth lens element and the sixth lens element along th

Assignees

• Genius Electronic Optical Xiamen Co Ltd

Inventors

• Jhang Jia-Sin
• Chen Baina

Classifications

• G02B9/64

  having more than six components · CPC title

• G02B13/0045 Primary

  having five or more lenses · CPC title

• G02B13/0015 Primary

  characterised by the lens design · CPC title