Optical imaging lens

Patent metadata

Field	Value
Publication number	US-12366725-B2
Application number	US-202217835985-A
Country	US
Kind code	B2
Filing date	Jun 9, 2022
Priority date	Dec 28, 2021
Publication date	Jul 22, 2025
Grant date	Jul 22, 2025

Abstract

An optical imaging lens including a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, and an eighth lens element sequentially along an optical axis from an object side to an image side is provided. Each of the first lens element to the eighth lens element includes an object-side surface facing the object side and allowing imaging rays to pass through and an image-side surface facing the image side and allowing the imaging rays to pass through. A periphery region of the object-side surface of the third lens element is concave, and a periphery region of the image-side surface of the third lens element is convex. Lens elements of the optical imaging lens are only the above-mentioned eight lens elements, and the optical imaging lens satisfies the condition of D11t62/D71t82≤2.400.

First claim

What is claimed is:

1. An optical imaging lens, 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, a seventh lens element, and an eighth lens element sequentially arranged along an optical axis from an object side to an image side, wherein each of the first lens element to the eighth lens element comprises an object-side surface facing the object side and allowing imaging rays to pass through and an image-side surface facing the image side and allowing the imaging rays to pass through;
a periphery region of the object-side surface of the third lens element is concave, and a periphery region of the image-side surface of the third lens element is convex;
a periphery region of the object-side surface of the fourth lens element is convex;
the sixth lens element has positive refracting power, and an optical axis region of the object-side surface of the sixth lens element is convex;
a periphery region of the image-side surface of the seventh lens element is convex;
wherein lens elements of the optical imaging lens are only the eight lens elements described above, and the optical imaging lens satisfies the following condition: D11t62/D71t82≤2.400, wherein D11t62 is a distance from the object-side surface of the first lens element to the image-side surface of the sixth lens element along the optical axis, and D71t82 is a distance from the object-side surface of the seventh lens element to the image-side surface of the eighth lens element along the optical axis.

2. The optical imaging lens according to claim 1 , wherein the optical imaging lens further satisfies the following conditional expression: V1+V2+V3+V4+V5≤195.000, wherein V1 is an Abbe number of the first lens element, V2 is an Abbe number of the second lens element, V3 is an Abbe number of the third lens element, V4 is an Abbe number of the fourth lens element, and V5 is an Abbe number of the fifth lens element.

3. The optical imaging lens according to claim 1 , wherein the optical imaging lens further satisfies the following conditional expression: ALT/(G23+G78)≤3.000, wherein ALT is a sum of thicknesses of the first lens element through the eighth lens element along the optical axis, G23 is an air gap between the second lens element and the third lens element along the optical axis, and G78 is an air gap between the seventh lens element and the eighth lens element along the optical axis.

4. The optical imaging lens according to claim 1 , wherein the optical imaging lens further satisfies the following conditional expression: TL/BFL≥6.300, wherein TL is a distance from the object-side surface of the first lens element to the image-side surface of the eighth lens element along the optical axis, and BFL is a distance from the image-side surface of the eighth lens element to an image plane along the optical axis.

5. The optical imaging lens according to claim 1 , wherein the optical imaging lens further satisfies the following conditional expression: AAG/EFL≤1.100, wherein AAG is a sum of seven air gaps respectively between the first lens element through the eighth lens element along the optical axis, and EFL is an effective focal length of the optical imaging lens.

6. The optical imaging lens according to claim 1 , wherein the optical imaging lens further satisfies the following conditional expression: TTL/T1≤12.000, wherein TTL is a distance from the object-side surface of the first lens element to an image plane along the optical axis, and T1 is a thickness of the first lens element along the optical axis.

7. The optical imaging lens according to claim 1 , wherein the optical imaging lens further satisfies the following conditional expression: EFL/(T5+T6+T7)≥3.500, wherein EFL is an effective focal length of the optical imaging lens, T5 is a thickness of the fifth lens element along the optical axis, T6 is a thickness of the sixth lens element along the optical axis, and T7 is a thickness of the seventh lens element along the optical axis.

8. An optical imaging lens, 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, a seventh lens element, and an eighth lens element sequentially arranged along an optical axis from an object side to an image side, wherein each of the first lens element to the eighth lens element comprises an object-side surface facing the object side and allowing imaging rays to pass through and an image-side surface facing the image side and allowing the imaging rays to pass through;
a periphery region of the object-side surface of the third lens element is concave, and a periphery region of the image-side surface of the third lens element is convex;
a periphery region of the object-side surface of the fourth lens element is convex;
the sixth lens element has positive refracting power, and an optical axis region of the object-side surface of the sixth lens element is convex;
a periphery region of the image-side surface of the eighth lens element is convex;
wherein lens elements of the optical imaging lens are only the eight lens elements described above, and the optical imaging lens satisfies the following condition: D11t62/D71t82≤2.400, wherein D11t62 is a distance from the object-side surface of the first lens element to the image-side surface of the sixth lens element along the optical axis, and D71t82 is a distance from the object-side surface of the seventh lens element to the image-side surface of the eighth lens element along the optical axis.

9. The optical imaging lens according to claim 8 , wherein the optical imaging lens further satisfies the following conditional expression: V2+V3+V7<2*V6, wherein V2 is an Abbe number of the second lens element, V3 is an Abbe number of the third lens element, V6 is an Abbe number of the sixth lens element, and V7 is an Abbe number of the seventh lens element.

10. The optical imaging lens according to claim 8 , wherein the optical imaging lens further satisfies the following conditional expression: ALT/(Tmax+G78)≤2.300, wherein ALT is a sum of thicknesses of eight lens elements of the first lens element through the eighth lens element along the optical axis, Tmax is a maximum value of the thicknesses of the first lens element through the eighth lens element along the optical axis, and G78 is an air gap between the seventh lens element and the eighth lens element along the optical axis.

11. The optical imaging lens according to claim 8 , wherein the optical imaging lens further satisfies the following conditional expression: (T1+G12+T2+G23+T3)/BFL≥2.300, wherein T1 is a thickness of the first lens element along the optical axis, T2 is a thickness of the second lens element along the optical axis, T3 is a thickness of the third lens element along the optical axis, G12 is an air gap between the first lens element and the second lens element along the optical axis, G23 is an air gap between the second lens element and the third lens element along the optical axis, and BFL is a distance from the image-side surface of the eighth lens element to an image plane along the optical axis.

12. The optical imaging lens according to claim 8 , wherein the optical imaging lens further satisfies the following conditional expression: AAG/(T3+G34+T4)≥2.000, wherein AAG is a sum of seven air gaps respectively between the first lens element through the eighth lens element along the optical axis, T3 is a thickness of the third lens element along the optical axis, T4 is a thickness of the fourth lens element along the optical axis, and G34 is an air gap between the third lens element and the fourth lens element

Assignees

• Genius Electronic Optical Xiamen Co Ltd

Inventors

• Zhang Jiayuan
• Zhu Qingzhi
• Liao Huabin
• Hsieh Hung-Chien

Classifications

• G02B13/0045

  having five or more lenses · CPC title

• G02B3/04

  with continuous faces that are rotationally symmetrical but deviate from a true sphere {, e.g. so called "aspheric" lenses} · CPC title

• G02B13/06

  Panoramic objectives; So-called "sky lenses" {including panoramic objectives having reflecting surfaces} · CPC title

• G02B1/041

  Lenses · CPC title

• G02B9/64 Primary

  having more than six components · CPC title