US 11,782,246 B2
Camera optical lens
Yutong Guo, Shenzhen (CN)
Assigned to AAC Optics (Suzhou) Co., Ltd., Changzhou (CN)
Filed by AAC Optics (Suzhou) Co., Ltd., Suzhou (CN)
Filed on Dec. 23, 2020, as Appl. No. 17/131,755.
Claims priority of application No. 202010917548.8 (CN), filed on Sep. 3, 2020.
Prior Publication US 2022/0066151 A1, Mar. 3, 2022
Int. Cl. G02B 9/60 (2006.01); G02B 13/00 (2006.01); G02B 27/00 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 9/60 (2013.01); G02B 27/0025 (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 negative refractive power;
a second lens having positive refractive power;
a third lens having negative refractive power;
a fourth lens having positive refractive power; and
a fifth lens having negative refractive power,
wherein the camera optical lens satisfies following conditions:
−3.00≤f1/f2≤−1.50;
1.80≤d3/d4≤4.00;
2.50≤R7/R8≤6.00; and
f3/f≤−5.00,
where
f denotes a focal length of the camera optical lens;
f1 denotes a focal length of the first lens;
f2 denotes a focal length of the second lens;
f3 denotes a focal length of the third 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;
R7 denotes a central curvature radius of an object side surface of the fourth lens; and
R8 denotes a central curvature radius of an image side surface of the fourth lens.