Camera optical lens

Patent metadata

Field	Value
Publication number	US-10795125-B2
Application number	US-201815971085-A
Country	US
Kind code	B2
Filing date	May 4, 2018
Priority date	Jan 23, 2018
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens is made of plastic material, the second lens is made of plastic material, the third lens is made of glass material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, the sixth lens is made of glass material, and the seventh lens is made of plastic material. The camera optical lens further satisfies specific conditions.

First claim

What is claimed is:

1. A camera optical lens comprising, from an object side to an image side in sequence: a first lens has a positive refractive power, a second lens has a negative refractive power, a third lens has a negative refractive power, a fourth lens has a positive refractive power, a fifth lens has a positive refractive power, a sixth lens has a negative refractive power and a seventh lens has a negative refractive power; wherein the camera optical lens further satisfies the following conditions:
1≤ f 1/ f≤ 1.5;

1.7≤ n 3≤2.2;

−2≤ f 3/ f 4≤2;

0.5≤( R 13+ R 14)/( R 13− R 14)≤10;

1.7≤ n 6≤2.2;

where
f: the focal length of the camera optical lens;
f 1 : the focal length of the first lens;
f 3 : the focal length of the third lens;
f 4 : the focal length of the forth lens;
n 3 : the refractive index of the third lens;
n 6 : the refractive index of the sixth lens;
R 13 : the curvature radius of object side surface of the seventh lens; and
R 14 : the curvature radius of image side surface of the seventh lens.

2. The camera optical lens as described in claim 1 further satisfying the following conditions:
1.101≤ f 1/ f≤ 1.459;

1.724≤ n 3≤2.086;

−1.746≤ f 3/ f 4≤0.527;

0.504≤( R 13+ R 14)/( R 13− R 14)≤5.403; and

1.702≤ n 6≤2.073.

3. The camera optical lens as described in claim 1 , wherein the first lens is made of plastic material, the second lens is made of plastic material, the third lens is made of glass material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, the sixth lens is made of glass material, the seventh lens is made of plastic material.

4. The camera optical lens as described in claim 1 , wherein the first lens has a convex object side surface and a concave image side surface relative to the proximal axis; the camera optical lens further satisfies the following conditions:
−4.25≤( R 1+ R 2)/( R 1− R 2)≤−1.14;

0.28 mm≤ d 1≤0.86 mm; where:

R 1 : the curvature radius of the object side surface of the first lens L 1 ;
R 2 : the curvature radius of the image side surface of the first lens L 1 ;
d 1 : the thickness on-axis of the first lens L 1 .

5. The camera optical lens as described in claim 4 further satisfying the following conditions:
−2.66≤( R 1+ R 2)/( R 1− R 2)≤−1.43;

0.45 mm≤ d 1≤0.69 mm.

6. The camera optical lens as described in claim 1 , wherein the second lens has a convex object side surface and a concave image side surface relative to the proximal axis; the camera optical lens further satisfies the following conditions:
−15.76≤ f 2/ f≤− 2.99;

2.90≤( R 3+ R 4)/( R 3− R 4)≤14.85;

0.18 mm≤ d 3≤0.56 mm; where

f: the focal length of the camera optical lens;
f 2 : the focal length of the second lens;
R 3 : the curvature radius of the object side surface of the second lens;
R 4 : the curvature radius of the image side surface of the second lens; and
d 3 : the thickness on-axis of the second lens.

7. The camera optical lens as described in claim 6 further satisfying the following condition:
−9.85≤ f 2/ f≤− 3.74;

4.64≤( R 3+ R 4)/( R 3− R 4)≤11.88;

0.28 mm≤ d 3≤0.45 mm.

8. The camera optical lens as described in claim 1 , wherein the third lens has a concave object side surface and a convex image side surface relative to the proximal axis; wherein the camera optical lens further satisfies the following conditions:
−10.38≤ f 3/ f≤− 2.44;

−10.82≤( R 5+ R 6)/( R 5− R 6)≤−3.23;

0.10 mm≤ d 5≤0.32 mm; where

f: the focal length of the camera optical lens;
f 3 : the focal length of the third lens;
R 5 : the curvature radius of the object side surface of the third lens;
R 6 : the curvature radius of the image side surface of the third lens; and
d 5 : the thickness on-axis of the third lens.

9. The camera optical lens as described in claim 8 further satisfying the following conditions:
−6.49≤ f 3/ f≤− 3.05;

−6.76≤( R 5+ R 6)/( R 5− R 6)≤−4.03;

0.17 mm≤ d 5≤0.25 mm.

10. The camera optical lens as described in claim 1 , wherein the fourth lens has a convex object side surface and a concave image side surface relative to the proximal axis; the camera optical lens further satisfies the following conditions:
1.74≤ f 4/ f≤ 5.80;

−2.30≤( R 7+ R 8)/( R 7− R 8)≤−0.67;

0.22 mm≤ d 7≤0.68 mm; where

f: the focal length of the camera optical lens;
f 4 : the focal length of the fourth lens;
R 7 : the curvature radius of the object side surface of the fourth lens;
R 8 : the curvature radius of the image side surface of the fourth lens; and
d 7 : the thickness on-axis of the fourth lens.

11. The camera optical lens as described in claim 10 further satisfying the following conditions:
2.79≤ f 4/ f≤ 4.64;

−1.44≤( R 7+ R 8)/( R 7− R 8)≤−0.84;

0.35 mm≤ d 7≤0.54 mm.

12. The camera optical lens as described in claim 1 , wherein the fifth lens has a concave object side surface and a convex image side surface relative to the proximal axis; the camera optical lens further satisfies the following conditions:
0.25≤ f 5/ f≤ 0.77;

0.53≤( R 9+ R 10)/( R 9− R 10)≤1.60;

0.42 mm≤ d 9≤1.31 mm; where

f: the focal length of the camera optical lens;
f 5 : the focal length of the fifth lens;
R 9 : the curvature radius of the object side surface of the fifth lens;
R 10 : the curvature radius of the image side surface of the fifth lens; and
d 9 : the thickness on-axis of the fifth lens.

13. The camera optical lens as described in claim 12 further satisfying the following conditions:
0.40≤ f 5/ f≤ 0.61;

0.85≤( R 9+ R 10)/( R 9− R 10)≤1.28;

0.67 mm≤ d 9≤1.05 mm.

14. The camera optical lens as described in claim 1 , wherein the sixth lens has a concave object side surface and a convex image side surface to the proximal axis; the camera optical lens further satisfies the following conditions:
−18.57≤ f 6/ f≤− 4.26;

−18.15≤( R 11+ R 12)/( R 11− R 12)≤−3.37;

0.15 mm≤ d 11≤0.47 mm; where

f: the focal length of the camera optical lens;
f 6 : the focal length of the sixth lens;
R 11 : the curvature radius of the object side surface of the sixth lens;
R 12 : the curvature radius of the image side surface of the sixth lens; and
d 11 : the thickness on-axis of the sixth lens.

15. The camera optical lens as described in claim 14 further satisfying the following conditions:
−11.60≤ f 6/ f≤− 5.33;

−11.34≤( R 11+ R 12)/( R 11− R 12)≤−4.22;

0.24 mm≤ d 11≤0.38 mm.

16. The camera optical lens as described in claim 1 , wherein the seventh lens has a concave object side surface and a concave image side surface relative to the proximal axis; the camera optical lens further satisfies the following conditions:
−1.00≤ f 7/ f ≤−0.28;

0.15 mm≤ d 13≤0.47 mm; where

f: the focal length of the camera optical lens;
f 7 : the focal length of the seventh lens; and
d 13 : the thickness on-axis of the seventh lens.

17. The camera optical lens as described in claim 16 further satisfying the following conditions:
−0.63≤ f 7/ f≤− 0.35;

0.24 mm≤ d 13≤0.38 mm.

18. The camera optical lens as described in claim 1 , wherein the total optical length TTL of the camera optical lens is less than or equal to 6.30 mm.

19. The camera optical lens as described in claim 18 , wherein the total optical length TTL of the camera optical lens is less than or equal to 6.01 mm.

20. The camera optical lens as described in claim 1 , wherein the aperture F numbe

Assignees

• Aac Technologies Pte Ltd
• Aac Optics Solutions Ptd Ltd

Inventors

• Zhao Xiaonan
• Zhang Lei
• Wang Yanmei
• Ji Yi

Classifications

• G02B13/0045 Primary

  having five or more lenses · CPC title

• G02B9/64 Primary

  having more than six components · CPC title