US 11,947,189 B2
Camera optical lens
Jia Chen, Shenzhen (CN)
Assigned to Raytech Optical (Changzhou) Co., Ltd., Changzhou (CN)
Filed by Raytech Optical (Changzhou) Co., Ltd, Changzhou (CN)
Filed on Dec. 31, 2020, as Appl. No. 17/138,900.
Claims priority of application No. 202011097569.6 (CN), filed on Oct. 14, 2020.
Prior Publication US 2022/0113498 A1, Apr. 14, 2022
Int. Cl. G02B 9/64 (2006.01); G02B 13/00 (2006.01)
CPC G02B 9/64 (2013.01) [G02B 13/0045 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A camera optical lens, comprising nine lenses, the nine lenses from an object side to an image side being:
a first lens with a negative refractive power;
a second lens with a positive refractive power;
a third lens with a negative refractive power;
a fourth lens with a positive refractive power;
a fifth lens with a positive refractive power;
a sixth lens with a positive refractive power;
a seventh lens with a negative refractive power;
an eighth lens with a positive refractive power; and
a ninth lens with a negative refractive power;
wherein the camera optical lens satisfies following conditions:
−1.80≤f1/f≤−0.50; 3.00≤d9/d10≤15.00; 0.62≤(R1+R2)/(R1−R2)≤5.26; 0.02≤d1/TTL≤0.07;
where
f denotes a focal length of the camera optical lens;
f1 denotes a focal length of the first lens;
d9 denotes an on-axis thickness of the fifth lens;
d10 denotes an on-axis distance from an image-side surface of the fifth lens to an object-side surface of the sixth lens;
R1 denotes a central curvature radius of an object-side surface of the first lens;
R2 denotes a central curvature radius of an image-side surface of the first lens;
d1 denotes an on-axis thickness of the first lens;
TTL denotes a total track length of the camera optical lens.