US 11,892,598 B2
Camera optical lens
Feng Zhu, Shenzhen (CN)
Assigned to CHANGZHOU RAYTECH OPTRONICS CO., LTD., Changzhaou (CN)
Filed by Changzhou Raytech Optronics Co., Ltd., Changzhou (CN)
Filed on Dec. 24, 2020, as Appl. No. 17/133,686.
Claims priority of application No. 202010700619.9 (CN), filed on Jul. 21, 2020.
Prior Publication US 2022/0026677 A1, Jan. 27, 2022
Int. Cl. G02B 9/60 (2006.01); G02B 13/00 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 9/60 (2013.01)] 10 Claims
OG exemplary drawing
 
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 positive 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:
1.20≤f2/f1≤7.00;
−3.62≤(R1+R2)/(R1−R2)≤−1.18
1.50≤R6/R5≤5.00
1.20≤d5/d6≤2.00;
where
f1 denotes a focal length of the first lens;
f2 denotes a focal length of the second lens;
R1 denotes a central curvature radius of an object side surface of the first lens;
R2 denotes a central curvature radius of an object side surface of the first lens;
R5 denotes a central curvature radius of an object side surface of the third lens;
R6 denotes a central curvature radius of an image side surface of the third lens;
d5 denotes an on-axis thickness of the third lens; and
d6 denotes an on-axis distance from the image side surface of the third lens to an object side surface of the fourth lens.