Camera optical lens
A camera optical lens includes, from an object side to an image side: 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 and a fifth lens having a positive refractive power. The camera optical lens satisfies conditions of 0.30≤f1/f≤0.50, −4.00≤f3/f≤−1.20, 2.00≤d6/d7≤8.00, and 3.00≤R9/R10≤10.00. Here f denotes a focal length of the camera optical lens, f1 denotes a focal length of the first lens, f3 denotes a focal length of the third lens, d6 denotes an on-axis distance from an image-side surface of the third lens to an object-side surface of the fourth lens, d7 denotes an on-axis thickness of the fourth lens. The camera optical lens of the present disclosure has excellent optical performances, and meanwhile can meet design requirements of a large aperture, a wide angle and ultra-thin.
1. A camera optical lens comprising, from an object side to an image side:
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; and
a fifth lens having a negative refractive power;
wherein the camera optical lens satisfies following conditions:
0.30≤ f 1/ f≤ 0.50;
−4.00≤ f 3/ f≤− 1.20;
2.00≤ d 6/ d 7≤8.00;and
3.00≤ R 9/ R 10≤10.00;
where
f denotes a focal length of the camera optical lens;
f1 denotes a focal length of the first lens;
f3 denotes a focal length of the third lens;
d6 denotes an on-axis distance from an image-side surface of the third lens to an object-side surface of the fourth lens;
d7 denotes an on-axis thickness of the fourth lens;
R9 denotes an curvature radius of an object-side surface of the fifth lens; and
R10 denotes a curvature radius of an image-side surface of the fifth lens.
2. The camera optical lens according to claim 1 further satisfying following condition: R3/R4≥2.00;
where
R3 denotes a curvature radius of an object-side surface of the second lens; and
R4 denotes a curvature radius of an image-side surface of the second lens.
3. The camera optical lens according to claim 1 further satisfying following conditions:
−1.36≤( R 1+ R 2)/( R 1− R 2)≤−0.34;and
0.05≤ d 1/ TTL≤ 0.21;
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;
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:
−1.41≤ f 2/ f≤− 0.43;
0.51≤( R 3+ R 4)/( R 3− R 4)≤4.44;and
0.01≤ d 3/ TTL≤ 0.04;
where
f2 denotes a focal length of the second 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;
d3 denotes an on-axis thickness of the second lens; and
TTL denotes a total optical length from an 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:
−5.79≤( R 5+ R 6)/( R 5− R 6)≤2.60;and
0.01≤ d 5/ TTL≤ 0.15;
where
R5 denotes a curvature radius of an object-side surface of the third lens;
R6 denotes a curvature radius of the image-side surface of the third lens;
d5 denotes an on-axis thickness of the third lens; and
TTL denotes a total optical length from an 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:
−9.79≤ f 4/ f≤ 2.52;
−26.96≤( R 7+ R 8)/( R 7− R 8)≤3.38;and
0.02≤ d 7/ TTL≤ 0.16;
where
f4 denotes a focal length of the fourth lens;
R7 denotes a curvature radius of the object-side surface of the fourth lens;
R8 denotes a curvature radius of an image-side surface of the fourth lens; and
TTL denotes a total optical length from an 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:
−4.27≤ f 5/ f≤− 0.48;
0.61≤( R 9+ R 10)/( R 9− R 10)≤2.99;and
0.01≤ d 9/ TTL≤ 0.13;
where
f5 denotes a focal length of the fifth lens;
d9 denotes an on-axis thickness of the fifth lens; and
TTL denotes a total optical length from an 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: f/IH≥2.80;
where IH denotes an image height of the camera optical lens.
9. The camera optical lens according to claim 1 further satisfying following condition: TTL/IH≤3.68;
where IH denotes an image height of the camera optical lens; and
TTL denotes a total optical length from an object-side surface of the first lens to an image surface of the camera optical lens along an optical axis.
10. The camera optical lens according to claim 1 further satisfying following condition: 0.26≤f12/f≤1.39;
where f12 denotes a combined focal length of the first lens and the second lens.