Camera optical lens comprising first to sixth lenses
Disclosed is a camera optical lens. The camera optical lens includes from an object side to an image side in sequence: a first lens having a negative refractive power; a second lens having a positive refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a positive refractive power; a sixth lens having a positive refractive power. The camera optical lens further satisfies the following conditions: 0.60≤f3/f≤1.20; −0.90≤(R3+R4)/(R3−R4)≤−0.10; 0.10≤d2/TTL≤0.20; 1.00≤f6/f≤5.00. The camera optical lens has good optical performance.
1 . A camera optical lens, comprising, from an object side to an image side in sequence:
a first lens having a negative refractive power;
a second lens having a positive refractive power;
a third lens having a positive refractive power;
a fourth lens having a negative refractive power;
a fifth lens having a positive refractive power;
a sixth lens having a positive refractive power;
wherein the camera optical lens further satisfies the following conditions:
0.6
≤
f
3
/
f
≤
1.2
;
-
0.9
0
≤
(
R
3
+
R
4
)
/
(
R
3
-
R
4
)
≤
-
0
.10
;
0.1
≤
d
2
/
TTL
≤
0.2
;
1.
≤
f
6
/
f
≤
5
.00
;
where,
f represents a focal length of the camera optical lens;
f3 represents a focal length of the third lens;
f6 represents a focal length of the sixth lens;
R3 represents a central curvature radius of the object side surface of the second lens;
R4 represents a central curvature radius of the image side surface of the second lens;
d2 represents a distance on-axis from an image side surface of the first lens to an object side surface of the second lens;
TTL represents a total optical length of the camera optical lens.
2 . The camera optical lens according to claim 1 , wherein the third lens is provided glued to the fourth lens.
3 . The camera optical lens according to claim 1 , further satisfying following condition:
2.5
≤
TTL
/
f
≤
5.
.
4 . The camera optical lens according to claim 1 , further satisfying following conditions:
35.
0
0
≤
V
3
-
V
4
≤
61.
;
where,
V3 represents an abbe number of the third lens;
V4 represents an abbe number of the fourth lens.
5 . The camera optical lens according to claim 1 , wherein the first lens has a concave image side surface at the proximal axis, and the camera optical lens further satisfying following conditions:
-
3.46
≤
f
1
/
f
≤
-
0
.66
;
0.04
≤
(
R
1
+
R
2
)
/
(
R
1
-
R
2
)
≤
2
.01
;
0.01
≤
d
1
/
TTL
≤
0
.08
;
where,
f1 represents a focal length of the first lens;
R1 represents a central curvature radius of the object side surface of the first lens;
R2 represents a central curvature radius of the image side surface of the first lens;
d1 represents a thickness on-axis of the first lens.
6 . The camera optical lens according to claim 1 , wherein the second lens has a convex object side surface at the proximal axis and a convex image side surface at the proximal axis; the camera optical lens further satisfying the following conditions:
0.44
≤
f
2
/
f
≤
3.73
;
0.03
≤
d
3
/
TTL
≤
0
.36
;
f2 represents a focal length of the second lens;
d3 represents a thickness on-axis of the second lens.
7 . The camera optical lens according to claim 1 , wherein the third lens has a convex object side surface at the proximal axis and a convex image side surface at the proximal axis; the camera optical lens further satisfying the following conditions:
-
1.1
1
≤
(
R
5
+
R
6
)
/
(
R
5
-
R
6
)
≤
-
0
.05
;
0.04
≤
d
5
/
TTL
≤
0.22
;
R5 represents a central curvature radius of the object side surface of the third lens;
R6 represents a central curvature radius of the image side surface of the third lens;
d5 represents a thickness on-axis of the third lens.
8 . The camera optical lens according to claim 1 , wherein the fourth lens has a concave object side surface at the proximal axis and a concave image side surface at the proximal axis; the camera optical lens further satisfying the following conditions:
-
1.46
≤
f
4
/
f
≤
-
0
.24
;
0.04
≤
(
R
7
+
R
8
)
/
(
R
7
-
R
8
)
≤
0
.87
;
0.01
≤
d
7
/
TTL
≤
0
.05
;
f4 represents a focal length of the fourth lens;
R7 represents a central curvature radius of the object side surface of the fourth lens;
R8 represents a central curvature radius of the image side surface of the fourth lens;
d7 represents a thickness on-axis of the fourth lens.
9 . The camera optical lens according to claim 1 , wherein the fifth lens has a convex image side surface at the proximal axis; the camera optical lens further satisfying the following conditions:
0.6
≤
f
5
/
f
≤
2
2
.03
;
0.01
≤
d
9
/
TTL
≤
0
.16
;
f5 represents a focal length of the fifth lens;
d9 represents a thickness on-axis of the fifth lens.
10 . The camera optical lens according to claim 1 , wherein the sixth lens has a convex object side surface at the proximal axis; the camera optical lens further satisfying the following conditions:
-
18.36
≤
(
R
11
+
R
1
2
)
/
(
R
11
-
R
12
)
≤
-
0
.30
;
0.07
≤
d
11
/
TTL
≤
0.29
;
R11 represents a central curvature radius of the object side surface of the sixth lens;
R12 represents a central curvature radius of the image side surface of the sixth lens;
d11 represents a thickness on-axis of the sixth lens.
11 . The camera optical lens according to claim 1 , wherein the first lens is made of glass material.
12 . The camera optical lens according to claim 1 , wherein the second lens is made of glass material.
13 . The camera optical lens according to claim 1 , wherein the third lens is made of glass material.
14 . The camera optical lens according to claim 1 , wherein the fourth lens is made of glass material.
15 . The camera optical lens according to claim 1 , wherein the fifth lens is made of glass material.
16 . The camera optical lens according to claim 1 , wherein the sixth lens is made of glass material.