Camera optical lens
Disclosed is a camera optical lens, including: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first, third, and six lenses have a positive refractive force, and the second, fourth, fifth, and seven lenses have a negative refractive force. An Abbe number of the first lens is v 1 ; a central radius of curvature of an objective surface of the fifth lens is R 9 , a central radius of curvature of an image surface thereof is R 10 ; an on-axis thickness of the fourth lens is d 7 , and an on-axis distance between the fourth and fifth lenses is d 8 ; a central radius of curvature of an objective surface of the sixth lens is R 11 , a central radius of curvature of an image surface thereof is R 12 , and the following relationship expressions are satisfied: 60.00≤v1≤82.00; 2.50≤R 9 /R 10 ≤30.00; 0.35≤d 7 /d 8 ≤1.00; 3.00≤R 12 /R 11 ≤10.00.
1 . A camera optical lens, comprising seven lenses, the seven lenses being in order from an objective side to an image side: a first lens having a positive refractive force, a second lens having a negative refractive force, a third lens having a positive refractive force, a fourth lens having a negative refractive force, a fifth lens having a negative refractive force, a sixth lens having a positive refractive force, and a seventh lens having a negative refractive force lens;
wherein an Abbe number of the first lens is v 1 ; a central radius of curvature of an objective surface of the fifth lens is R 9 , and a central radius of curvature of an image surface of the fifth lens is R 10 ; an on-axis thickness of the fourth lens is d 7 ; an on-axis distance between the fourth lens and the fifth lens is d 8 ; a central radius of curvature of an objective surface of the sixth lens is R 11 , a central radius of curvature of an image surface of the sixth lens is R 12 , and the following relationship expressions are satisfied:
60.
≤
v
1
≤
82.
;
2.5
≤
R
9
/
R
10
≤
3
0
.00
;
0.35
≤
d
7
/
d
8
≤
1.
;
3.
≤
R
1
2
/
R
11
≤
1
0
.
0
0
.
2 . The camera optical lens of claim 1 , wherein a focal length of the second lens is f 2 , a focal length of the seventh lens is f 7 , and the following relationship expression is satisfied:
8.
≤
f
2
/
f
7
≤
25.
.
3 . The camera optical lens of claim 1 , wherein an objective surface of the first lens is convex at a proximal-axis position, and an image surface of the first lens is concave at a proximal-axis position;
a focal length of the first lens is f 1 , and a focal length of the camera optical lens is f; a central radius of curvature of the objective surface of the first lens is R 1 , and a central radius of curvature of the image surface of the first lens is R 2 ; an on-axis thickness of the first lens is d 1 , a total track length of the camera optical lens is TTL, and the following relationship expressions are satisfied:
0.56
≤
f
1
/
f
≤
1
≤
1.82
;
-
4.7
4
≤
(
R
1
+
R
2
)
/
(
R
1
-
R
2
)
≤
-
1.38
;
0.06
≤
d
1
/
TTL
≤
0
.
2
0
.
4 . The camera optical lens of claim 1 , wherein an objective surface of the second lens is convex at a proximal-axis position, and an image surface of the second lens is concave at a proximal-axis position;
a focal length of the second lens is f 2 , and a focal length of the camera optical lens is f; a central radius of curvature of the objective surface of the second lens is R 3 , and a central radius of curvature of the image surface of the second lens is R 4 ; an on-axis thickness of the second lens is d 3 , a total track length of the camera optical lens is TTL, and the following relationship expressions are satisfied:
-
3
2
.
1
9
≤
f
2
/
f
≤
-
3.84
;
3.83
≤
(
R
3
+
R
4
)
/
(
R
3
-
R
4
)
≤
2
9
.79
;
0.02
≤
d
3
/
TTL
≤
0
.
0
6
.
5 . The camera optical lens of claim 1 , wherein an image surface of the third lens is convex at a proximal-axis position;
a focal length of the third lens is f 3 , and a focal length of the camera optical lens is f; a central radius of curvature of the objective surface of the third lens is R 5 , and a central radius of curvature of the image surface of the third lens is R 6 ; an on-axis thickness of the third lens is d 5 , a total track length of the camera optical lens is TTL, and the following relationship expressions are satisfied:
3.37
≤
f
3
/
f
≤
18.36
;
0.06
≤
(
R
5
+
R
6
)
/
(
R
5
-
R
6
)
≤
3
.15
;
0.03
≤
d
5
/
TTL
≤
0
.
1
0
.
6 . The camera optical lens of claim 1 , wherein an objective surface of the fourth lens is convex at a proximal-axis position, and an image surface of the fourth lens is concave at a proximal-axis position;
a focal length of the fourth lens is f 4 , and a focal length of the camera optical lens is f; a central radius of curvature of the objective surface of the fourth lens is R 7 , and a central radius of curvature of the image surface of the fourth lens is R 8 ; an on-axis thickness of the fourth lens is d 7 , a total track length of the camera optical lens is TTL, and the following relationship expressions are satisfied:
-
1
1
.
1
3
≤
f
4
/
f
≤
-
2.75
;
1.45
≤
(
R
7
+
R
8
)
/
(
R
7
-
R
8
)
≤
5.52
;
0.01
≤
d
7
/
TTL
≤
0
.
0
9
.
7 . The camera optical lens of claim 1 , wherein the objective surface of the fifth lens is convex at a proximal-axis position, and the image surface of the fifth lens is concave at a proximal-axis position;
a fifth lens has a focal length of f 5 , and a focal length of the camera optical lens is f, an on-axis thickness of the fifth lens is 9, a total track length of the camera optical lens is TTL, and the following relationship expressions are satisfied:
-
9
.
2
7
≤
f
5
/
f
≤
-
1.05
;
0.04
≤
d
9
/
TTL
≤
0
.
1
4
.
8 . The camera optical lens of claim 1 , wherein the objective surface of the sixth lens is convex at a proximal-axis position, and the image surface of the sixth lens is concave at a proximal-axis position;
a focal length of the sixth lens is f 6 , and a focal length of the camera optical lens is f, an on-axis thickness of the sixth lens is d 11 , a total track length of the camera optical lens is TTL, and the following relationship expressions are satisfied:
0.33
≤
f
6
/
f
≤
1.34
;
0.04
≤
d
11
/
TTL
≤
0
.
1
3
.
9 . The camera optical lens of claim 1 , wherein an objective surface of the seventh lens is concave at a proximal-axis position, and an image surface of the seventh lens is concave at a proximal-axis position;
a focal length of the seventh lens is f 7 , and a focal length of the camera optical lens is f, a central radius of curvature of the objective surface of the seventh lens is R 13 , and a central radius of curvature of the image surface of the seventh lens is R 14 ; an on-axis thickness of the seventh lens is d 13 , a total track length of the camera optical lens is TTL, and the following relationship expressions are satisfied:
-
1.6
≤
f
7
/
f
≤
-
0.44
;
-
0.1
2
≤
(
R
1
3
+
R
1
4
)
/
(
R
13
-
R
14
)
≤
0
.07
;
0.02
≤
d
13
/
TTL
≤
0
.
1
3
.
10 . The camera optical lens of claim 1 , wherein the first lens is made of glass.