Camera optical lens including five lenses of +−-+− refractive powers
The present invention provides a camera optical lens satisfying following conditions: 0.04≤R1/R2≤0.07, −3.60≤R3/R4≤−2.50, 1.55≤R5/R6≤1.80, 2.80≤R9/R10≤3.20, 0.65≤d8/d9≤0.85, and 0.56≤d6/d8≤0.60; where R1 and R1 respectively denote a curvature radius of an object-side surface and image-side surface of a first lens; R3 and R4 respectively denote a curvature radius of an object-side surface and image-side surface of a second lens; R5 and R6 respectively denote a curvature radius of an object-side surface and image-side surface of a third lens; R9 and R10 respectively denote a curvature radius of an object-side surface and image-side surface of a fifth lens; d6 and d8 respectively denote an on-axis distance from the third lens to the fourth lens and from the fourth lens to the fifth lens; and d9 denotes an on-axis thickness of the fifth lens.
1. A camera optical lens comprising, from an object-side surface to an image-side surface:
a first lens having a positive refractive power;
a second lens having a negative refractive power;
a third lens having a negative refractive power;
a fourth lens having a positive refractive power; and
a fifth lens having a negative refractive power;
wherein the camera optical lens satisfies following conditions:
0.04≤R1/R2≤0.07;
−3.60≤R3/R4≤−2.50;
1.55≤R5/R6≤1.80;
2.80≤R9/R10≤3.20;
0.65≤d8/d9≤0.85; and
0.56≤d6/d8≤0.60;
where
R1 denotes a curvature radius of an object-side surface of the first lens;
R2 denotes a curvature radius of an image-side surface of the first lens;
R3 denotes a curvature radius of an object-side surface of the second lens;
R4 denotes a curvature radius of an image-side surface of the second lens;
R5 denotes a curvature radius of an object-side surface of the third lens;
R6 denotes a curvature radius of an image-side surface of the third lens;
R9 denotes a curvature radius of an object-side surface of the fifth lens;
R10 denotes a curvature radius of an image-side surface of the fifth lens;
d6 denotes an on-axis distance from the third lens to the fourth lens;
d8 denotes an on-axis distance from the fourth lens to the fifth lens; and
d9 denotes an on-axis thickness of the fifth lens.
2. The camera optical lens according to claim 1 further satisfying following condition:
2.80≤R7/R8≤3.00;
where
R7 denotes a curvature radius of an object-side surface of the fourth lens; and
R8 denotes a curvature radius of an image-side surface of the fourth lens.
3. The camera optical lens according to claim 1 further satisfying following conditions:
0.06≤d1/TTL≤0.19;
−2.30≤(R1+R2)/(R1−R2)≤−0.73; and
0.42≤f1/f≤1.30;
where
f denotes a focal length of the camera optical lens;
f1 denotes a focal length of the first lens;
d1 denotes an on-axis thickness of the first lens; and
TTL denotes a total optical length from the object-side surface of the first lens to an image surface of the camera optical lens along an optical axis.
4. The camera optical lens according to claim 1 further satisfying following conditions:
0.03≤d3/TTL≤0.08;
−4.84≤f2/f≤−1.36; and
0.22≤(R3+R4)/(R3−R4)≤0.84;
where
f denotes a focal length of the camera optical lens;
f2 denotes a focal length of the second lens;
d3 denotes an on-axis thickness of the second lens; and
TTL denotes a total optical length from the object-side surface of the first lens to an image surface of the camera optical lens along an optical axis.
5. The camera optical lens according to claim 1 further satisfying following conditions:
0.03≤d5/TTL≤0.11;
1.77≤(R5+R6)/(R5−R6)≤6.88; and
−12.52≤f3/f≤−3.21;
where
f denotes a focal length of the camera optical lens;
f3 denotes a focal length of the third lens;
d5 denotes an on-axis thickness of the third lens; and
TTL denotes a total optical length from the object-side surface of the first lens to an image surface of the camera optical lens along an optical axis.
6. The camera optical lens according to claim 1 further satisfying following conditions:
0.08≤d7/TTL≤0.26;
0.43≤f4/f≤1.42; and
1.01≤(R7+R8)/(R7−R8)≤3.15;
where
f denotes a focal length of the camera optical lens;
f4 denotes a focal length of the fourth lens;
R7 denotes a curvature radius of an object-side surface of the fourth lens;
R8 denotes a curvature radius of an image-side surface of the fourth lens;
d7 denotes an on-axis thickness of the fourth lens; and
TTL denotes a total optical length from the object-side surface of the first lens to an image surface of the camera optical lens along an optical axis.
7. The camera optical lens according to claim 1 further satisfying following conditions:
0.05≤d9/TTL≤0.21;
−1.95≤f5/f≤−0.59; and
0.96≤(R9+R10)/(R9−R10)≤3.15;
where
f denotes a focal length of the camera optical lens;
f5 denotes a focal length of the fifth lens; and
TTL denotes a total optical length from the object-side surface of the first lens to an image surface of the camera optical lens along an optical axis.
8. The camera optical lens according to claim 1 further satisfying following condition:
TTL/IH≤1.50;
where
TTL denotes a total optical length from the object-side surface of the first lens to an image surface of the camera optical lens along an optical axis; and
IH denotes an image height of the camera optical lens.
9. The camera optical lens according to claim 1 further satisfying following condition:
0.61≤f12/f≤1.93;
where
f12 denotes a combined focal length of the first lens and second lens; and
f denotes a focal length of the camera optical lens.