US 11,892,599 B2
Camera optical lens including nine lenses of +−−++−++−, +=+++−++− or +−+−−−+−− refractive powers
Wanxia Li, 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. 17/134,164.
Claims priority of application No. 202010931561.9 (CN), filed on Sep. 8, 2020.
Prior Publication US 2022/0075145 A1, Mar. 10, 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;
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:
0.70≤f1/f≤1.90;
−10.02≤f6/f≤−2.53;
−1.19≤(R13+R14)/(R13−R14)≤0.48; and
2.00≤d5/d6≤9.00,
where
f denotes a focal length of the camera optical lens,
f1 denotes a focal length of the first lens,
f6 denotes a focal length of the sixth lens,
R13 denotes a central curvature radius of an object side surface of the seventh lens,
R14 denotes a central curvature radius of an image side surface of the seventh lens,
d5 denotes an on-axis thickness of the third lens, and
d6 denotes an on-axis distance from an image side surface of the third lens to an object side surface of the fourth lens.