US 11,892,605 B2
Camera optical lens
Rongbao Shi, Shenzhen (CN)
Assigned to AAC Optics (Suzhou) Co., Ltd., Suzhou (CN)
Filed by AAC Optics (Suzhou) Co., Ltd., Suzhou (CN)
Filed on Dec. 30, 2020, as Appl. No. 17/138,826.
Claims priority of application No. 202010918113.5 (CN), filed on Sep. 3, 2020.
Prior Publication US 2022/0066169 A1, Mar. 3, 2022
Int. Cl. G02B 13/00 (2006.01); G02B 9/62 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 9/62 (2013.01)] 9 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 having a positive refractive power; and
a sixth lens having a negative refractive power;
wherein an object-side surface of the second lens is convex in the paraxial region;
wherein the camera optical lens satisfies the following conditions:
0.25≤d10/TTL≤0.50;
0.55≤f1/f≤1.00; and
−2.10≤f2/f≤−1.00;
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;
d10 denotes an on-axis thickness from an image-side surface of the fifth lens to an object-side surface of the sixth lens; and
TTL denotes a total optical length from an object-side surface of the first lens to an image surface of the camera optical lens along an optical axis.