Camera optical lens

1. A camera optical lens comprising, from an object side to an image side in sequence: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens; wherein there are no intervening lenses between the first lens and the second lens and the camera optical lens further satisfies the following conditions:

−5≤f1/f≤−3;

1.7≤n2≤2.2;

v3≥60;

0.03≤d3/TTL≤0.12;

1.17≤f12/f≤4.25;

where

f: a focal length of the camera optical lens;

f12: a combined focal length of the first lens and the second lens;

f1: a focal length of the first lens;

n2: a refractive index of the second lens;

v3: a abbe number of the third lens;

d3: a thickness on-axis of the second lens;

TTL: a total optical length from the object side surface of the first lens to the image surface along the optic axis of the camera optical lens.

2. The camera optical lens as described in claim 1 further satisfying the following conditions:

−4.499≤f1/f≤−3;

1.71≤n2≤2.042;

v3≥60.334;

0.05≤d3/TTL≤0.1;

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 glass 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 plastic material.

4. The camera optical lens as described in claim 1 , wherein first lens has a negative refractive power with a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions:

3.81≤( R 1 +R 2)/( R 1 −R 2)≤14.40;

0.02≤d1/TTL≤0.07; where

R1: a curvature radius of object side surface of the first lens;

R2: a curvature radius of image side surface of the first lens;

d1: a thickness on-axis of the first lens.

5. The camera optical lens as described in claim 4 further satisfying the following conditions:

6.10≤( R 1 +R 2)/( R 1 −R 2)≤11.52;

0.04≤d1/TTL≤0.05.

6. The camera optical lens as described in claim 1 , wherein the second lens has a positive refractive power with a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions:

0.66≤f2/f≤2.09;

−5.80≤( R 3 +R 4)/( R 3 −R 4)≤−1.76; where

f: a focal length of the camera optical lens;

f2: a focal length of the second lens;

R3: a curvature radius of the object side surface of the second lens;

R4: a curvature radius of the image side surface of the second lens.

7. The camera optical lens as described in claim 6 further satisfying the following conditions:

1.05≤f2/f≤1.67;

−3.62≤( R 3 +R 4)/( R 3 −R 4)≤−2.20.

8. The camera optical lens as described in claim 1 , wherein the third lens has a positive refractive power with a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions:

0.79≤f3/f≤2.53;

−2.96≤( R 5 +R 6)/( R 5 −R 6)≤−0.86;

0.04≤d5/TTL≤0.13; where

f: a focal length of the camera optical lens;

f3: a focal length of the third lens;

R5: a curvature radius of the object side surface of the third lens;

R6: a curvature radius of the image side surface of the third lens;

d5: a thickness on-axis of the third lens.

9. The camera optical lens as described in claim 8 further satisfying the following conditions:

1.26≤f3/f≤2.02;

−1.85≤( R 5 +R 6)/( R 5 −R 6)≤−1.08;

0.06≤d5/TTL≤0.11.

10. The camera optical lens as described in claim 1 , wherein the fourth lens has a positive refractive power with a concave object side surface and a convex image side surface; the camera optical lens further satisfies the following conditions:

0.97≤f4/f≤3.32;

1.17≤( R 7 +R 8)/( R 7 −R 8)≤4.02;

0.05≤d7/TTL≤0.15; where

f: a focal length of the camera optical lens;

f4: a focal length of the fourth lens;

R7: a curvature radius of the object side surface of the fourth lens;

R8: a curvature radius of the image side surface of the fourth lens;

d7: a thickness on-axis of the fourth lens.

11. The camera optical lens as described in claim 10 further satisfying the following conditions:

1.55≤f4/f≤2.66;

1.87≤( R 7 +R 8)/( R 7 −R 8)≤3.22;

0.08≤d7/TTL≤0.12.

12. The camera optical lens as described in claim 1 , wherein the fifth lens has a negative refractive power with a concave object side surface and a convex image side surface; the camera optical lens further satisfies the following conditions:

−3.23≤f5/f≤−0.89;

−11.67≤( R 9 +R 10)/( R 9 −R 10)≤−2.95;

0.03≤d9/TTL≤0.11; where

f: a focal length of the camera optical lens;

f5: a focal length of the fifth lens;

R9: a curvature radius of the object side surface of the fifth lens;

R10: a curvature radius of the image side surface of the fifth lens;

d9: a thickness on-axis of the fifth lens.

13. The camera optical lens as described in claim 12 further satisfying the following conditions:

−2.02≤f5/f≤−1.11;

−7.29≤( R 9 +R 10)/( R 9 −R 10)≤−3.68;

0.04≤d9/TTL≤0.09.

14. The camera optical lens as described in claim 1 , wherein the sixth lens has a positive refractive power with convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions:

2.01≤f6/f≤7.81;

−157.17≤( R 11 +R 12)/( R 11 −R 12)≤82.50;

0.10≤d11/TTL≤0.33; where

f: a focal length of the camera optical lens;

f6: a focal length of the sixth lens;

R11: a curvature radius of the object side surface of the sixth lens;

R12: a curvature radius of the image side surface of the sixth lens;

d11: a thickness on-axis of the sixth lens.

15. The camera optical lens as described in claim 14 further satisfying the following conditions:

3.21≤f6/f≤6.25;

−98.23≤( R 11 +R 12)/( R 11 −R 12)≤66.00;

0.16≤d11/TTL≤0.26.

16. The camera optical lens as described in claim 1 further satisfying the following condition:

1.87≤f12/f≤3.40.

17. 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 5.17 mm.

18. The camera optical lens as described in claim 17 , wherein the total optical length TTL of the camera optical lens is less than or equal to 4.94 mm.

19. The camera optical lens as described in claim 1 , wherein the aperture F number of the camera optical lens is less than or equal to 2.16.

20. The camera optical lens as described in claim 19 , wherein the aperture F number of the camera optical lens is less than or equal to 2.12.