Camera optical lens
The present disclosure relates to the field of optical lens, and discloses a camera optical lens, including from an object side to an image side: a first lens having positive refractive power, a second lens having negative refractive power, a third lens having negative refractive power, a fourth lens having positive refractive power, a fifth lens having negative refractive power, a sixth lens having positive refractive power, and a seventh lens having negative refractive power; and the following relational expressions are satisfied: −0.300≤Sin(A1.0out14)*R14/f7≤0.003; 1.05≤(f1+f2+f3+f4)/(f5+f6+f7)≤2.30; −1.40≤Sin(A0.8out8)*R8/f4≤0.10. The camera optical lens according to the present disclosure has excellent optical characteristics of sufficient aberration correction, large aperture, wide-angle, ultra-thin, diversified structural design, and high sensor matching, and is particularly suitable for a mobile phone camera lens assembly and a WEB camera lens which are composed of camera elements such as CCD, CMOS with high definition and a vehicle-mounted lens.
1 . A camera optical lens, sequentially comprising seven lenses from an object side to an image side: a first lens having positive refractive power, a second lens having negative refractive power, a third lens having negative refractive power, a fourth lens having positive refractive power, a fifth lens having negative refractive power, a sixth lens having positive refractive power, and a seventh lens having negative refractive power;
wherein an object side surface of the first lens is convex in a paraxial region, and an image side surface of the first lens is concave in a paraxial region; an object side surface of the second lens is convex in a paraxial region, and an image side surface of the second lens is concave in a paraxial region; an object side surface of the third lens is concave in a paraxial region, and an image side surface of the third lens is concave in a paraxial region; an object side surface of the fourth lens is convex in a paraxial region, and an image side surface of the fourth lens is convex in a paraxial region; an object side surface of the fifth lens is convex in a paraxial region, and an image side surface of the fifth lens is concave in a paraxial region; an object side surface of the sixth lens is convex in a paraxial region, and an image side surface of the sixth lens is convex in a paraxial region; an object side surface of the seventh lens is convex in a paraxial region, and an image side surface of the seventh lens is concave in a paraxial region;
wherein a focal length of the first lens is f1, a focal length of the second lens is f2, a focal length of the third lens is f3, a focal length of the fourth lens is f4, a focal length of the fifth lens is f5, a focal length of the sixth lens is f6, a focal length of the seventh lens is f7, a central curvature radius of the image side surface of the fourth lens in the paraxial region is R8, a central curvature radius of the object side surface of the fifth lens in the paraxial region is R9, a central curvature radius of the image side surface of the fifth lens in the paraxial region is R10, a central curvature radius of the image side surface of the seventh lens in the paraxial region is R14, an entrance pupil diameter of the camera optical lens is ENPD, the field of view of the 1.0 field of view of the camera optical lens is FOV, an on-axis distance from the image side surface of the first lens to the object side surface of the second lens is d2, an on-axis distance from the image side surface of the second lens to the object side surface of the third lens is d4, an angle between a chief ray of the 1.0 field of view of the camera optical lens and an optical axis when it is emitted from the image side surface of the seventh lens is Sin(A1.0out14), an angle between the chief ray of the 0.8 field of view of the camera optical lens and the optical axis when it is emitted from the image side surface of the fourth lens is Sin(A0.8out8), and following relational expressions are satisfied:
-
1.4
≤
f
3
/
f
4
≤
-
0.6
;
1.2
≤
R
9
/
R
1
0
≤
1.9
;
5.1
≤
ENPD
/
Tan
(
FOV
/
2
)
≤
5.7
;
0.3
≤
d
2
/
d
4
≤
0
.60
;
-
0.3
00
≤
Sin
(
A
1.
out
14
)
*
R
14
/
f
7
≤
0
.003
;
1.05
≤
(
f
1
+
f
2
+
f
3
+
f
4
)
/
(
f
5
+
f
6
+
f
7
)
≤
2.3
;
and
-
1.4
≤
Sin
(
A
0.8
out
8
)
*
R
8
/
f
4
≤
0
.
1
0
.
2 . The camera optical lens as described in claim 1 , wherein following relational expression is satisfied: 0.30≤d2/d4≤0.50.
3 . The camera optical lens as described in claim 1 , wherein following relational expression is satisfied: −0.230≤Sin(A1.0out14)*R14/f7≤0.003.
4 . The camera optical lens as described in claim 1 , wherein following relational expression is satisfied: 1.25≤(f1+f2+f3+f4)/(f5+f6+f7)≤2.00.
5 . The camera optical lens as described in claim 1 , wherein following relational expression is satisfied: −1.20≤Sin(A0.8out8)*R8/f4≤0.10.
6 . The camera optical lens as described in claim 1 , wherein an on-axis thickness of the sixth lens is d11, and following relational expression is satisfied: 9.00≤f6/d11≤16.00.
7 . The camera optical lens as described in claim 6 , wherein following relational expression is satisfied: 11.00≤f6/d11≤14.00.
8 . The camera optical lens as described in claim 1 , wherein the first lens is made of glass.
9 . A camera optical lens, sequentially comprising seven lenses from an object side to an image side: a first lens having positive refractive power, a second lens having negative refractive power, a third lens having negative refractive power, a fourth lens having positive refractive power, a fifth lens having negative refractive power, a sixth lens having positive refractive power, and a seventh lens having negative refractive power;
wherein an object side surface of the first lens is convex in a paraxial region, and an image side surface of the first lens is concave in a paraxial region; an object side surface of the second lens is convex in a paraxial region, and an image side surface of the second lens is concave in a paraxial region; an object side surface of the third lens is concave in a paraxial region, and an image side surface of the third lens is concave in a paraxial region; an object side surface of the fourth lens is convex in a paraxial region, and an image side surface of the fourth lens is convex in a paraxial region; an object side surface of the fifth lens is convex in a paraxial region, and an image side surface of the fifth lens is concave in a paraxial region; an object side surface of the sixth lens is convex in a paraxial region, and an image side surface of the sixth lens is convex in a paraxial region; an object side surface of the seventh lens is convex in a paraxial region, and an image side surface of the seventh lens is concave in a paraxial region;
wherein a focal length of the first lens is f1, a focal length of the second lens is f2, a focal length of the third lens is f3, a focal length of the fourth lens is f4, a focal length of the fifth lens is f5, a focal length of the sixth lens is f6, a focal length of the seventh lens is f7, a central curvature radius of the object side surface of the first lens in the paraxial region is R1, a central curvature radius of the image side surface of the second lens in the paraxial region is R4, a central curvature radius of the object side surface of the third lens in the paraxial region is R5, a central curvature radius of the image side surface of the fourth lens in the paraxial region is R8, a central curvature radius of the image side surface of the seventh lens in the paraxial region is R14, an angle between a chief ray of the 1.0 field of view of the camera optical lens and an optical axis when it is emitted from the image side of the seventh lens is Sin(A1.0out14), an angle between a chief ray of the 0.8 field of view of the camera optical lens and the optical axis when it is emitted from the image side of the fourth lens is Sin(A0.8out8), a maximum incident angle of all the chief rays of the camera optical lens on the image plane is CRAmax, and following relational expressions are satisfied:
-
0.3
00
≤
Sin
(
A
1.
out
1
4
)
*
R
14
/
f
7
≤
0.003
;
1.05
≤
(
f
1
+
f
2
+
f
3
+
f
4
)
/
(
f
5
+
f
6
+
f
7
)
≤
2
.30
;
-
1.4
≤
Sin
(
A
0.8
out
8
)
*
R
8
/
f
4
≤
0
.10
;
1.6
≤
f1
/
R
1
+
f
4
/
R
8
≤
3.
;
-
14.
≤
f
2
/
R
4
+
f
3
/
R
5
≤
-
5
.50
;
and
35.
°
≤
CRA
max
≤
40.
°
.
10 . The camera optical lens as described in claim 9 , wherein following relational expression is satisfied: 1.95≤f1/R1+f4/R8≤2.55.
11 . The camera optical lens as described in claim 9 , wherein following relational expression is satisfied: −12.00≤f2/R4+f3/R5≤−7.00.
12 . The camera optical lens as described in claim 9 , wherein following relational expression is satisfied: −0.230≤Sin(A1.0out14)*R14/f7≤0.003.
13 . The camera optical lens as described in claim 9 , wherein following relational expression is satisfied: 1.25≤(f1+f2+f3+f4)/(f5+f6+f7)≤2.00.
14 . The camera optical lens as described in claim 9 , wherein following relational expression is satisfied: −1.20≤Sin(A0.8out8)*R8/f4≤0.10.
15 . The camera optical lens as described in claim 9 , wherein an on-axis thickness of the seventh lens is d13, and following relational expression is satisfied: −15.00≤f7/d13≤−8.50.
16 . The camera optical lens as described in claim 15 , wherein following relational expression is satisfied: −12.00≤f7/d13≤−10.00.
17 . The camera optical lens as described in claim 9 , wherein following relational expression is satisfied: −4.80≤f7/R14≤−1.60.
18 . The camera optical lens as described in claim 17 , wherein following relational expression is satisfied: −4.00≤f7/R14≤−2.00.
19 . The camera optical lens as described in claim 9 , wherein the first lens is made of glass.