US 11,947,077 B2
Camera optical lens
Congfang Si, Shenzhen (CN)
Assigned to Changzhou Raytech Optronics Co., Ltd., Changzhou (CN)
Filed by Changzhou Raytech Optronics Co., Ltd., Changzhou (CN)
Filed on Dec. 25, 2020, as Appl. No. 17/134,165.
Claims priority of application No. 202010916864.3 (CN), filed on Sep. 3, 2020.
Prior Publication US 2022/0066153 A1, Mar. 3, 2022
Int. Cl. G02B 13/00 (2006.01); G02B 9/64 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01)] 11 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 negative refractive power;
a third lens;
a fourth lens;
a fifth lens;
a sixth lens;
a seventh lens;
an eighth lens; and
a ninth lens,
wherein the camera optical lens satisfies following conditions:
2.00≤f1/f≤5.00;
−22.67≤(R1+R2)/(R1−R2)≤−3.33;
0.03≤d1/TTL≤0.09; and
2.00≤d3/d4≤10.00,
where
f denotes a focal length of the camera optical lens,
f1 denotes a focal length of the first 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,
d3 denotes an on-axis thickness of the second lens,
d4 denotes an on-axis distance from an image side surface of the second lens to an object side surface of the third lens, and
TTL denotes a total optical length from the object side surface of the first lens to an image plane of the camera optical lens along an optic axis.