US 11,693,211 B2
Camera optical lens
Chenxiyang Chen, Shenzhen (CN); and Wen Sun, Shenzhen (CN)
Assigned to Raytech Optical (Changzhou) Co., Ltd., Changzhou (CN)
Filed by Raytech Optical (Changzhou) Co., Ltd, Changzhou (CN)
Filed on Dec. 30, 2020, as Appl. No. 17/138,816.
Claims priority of application No. 202010989334.1 (CN), filed on Sep. 19, 2020.
Prior Publication US 2022/0091393 A1, Mar. 24, 2022
Int. Cl. G02B 9/60 (2006.01); G02B 13/00 (2006.01); G02B 27/00 (2006.01)
CPC G02B 9/60 (2013.01) [G02B 13/0045 (2013.01); G02B 27/0025 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A camera optical lens comprising five-piece lenses, from an object side to an image side, the five-piece lenses are:
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:
0.65≤f1/f≤0.85;
1.20≤(R7+R8)/(R7−R8)≤1.75;
−40.00≤f3/f≤−20.00;
0.50≤d5/d6≤0.80; and
1.00≤d8/d9≤1.30;
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;
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;
d5 denotes an on-axis thickness of the third lens;
d6 denotes an on-axis distance from an image-side surface of the third lens to the object-side surface of the fourth lens;
d8 denotes an on-axis distance from the image-side surface of the fourth lens to an object-side surface of the fifth lens; and
d9 denotes an on-axis thickness of the fifth lens.