US 12,032,129 B2
Camera optical lens
Congfang Si, Shenzhen (CN)
Assigned to RAYTECH OPTICAL (CHANGZHOU) CO., LTD, Changzhou (CN)
Filed by Raytech Optical (Changzhou) Co., Ltd, Changzhou (CN)
Filed on Dec. 29, 2020, as Appl. No. 17/136,026.
Claims priority of application No. 202011088171.6 (CN), filed on Oct. 13, 2020.
Prior Publication US 2022/0113503 A1, Apr. 14, 2022
Int. Cl. G02B 9/64 (2006.01); G02B 13/00 (2006.01); G02B 13/06 (2006.01); G02B 27/00 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01); G02B 13/06 (2013.01); G02B 27/0025 (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;
a fourth lens with a negative refractive power;
a fifth lens;
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 the following conditions:
−1.60custom characterf1/fcustom character−0.50; 3.00custom characterd13/d14custom character15.00; 1.80custom characterR9/R10custom character7.00;
where
f denotes a focal length of the camera optical lens;
f1 denotes a focal length of the first lens;
d13 denotes an on-axis thickness of the seventh lens;
d14 denotes an on-axis distance from an image-side surface of the seventh lens to an object-side surface of the eighth lens,
R9 denotes a central curvature radius of an object-side surface of the fifth lens,
R10 denotes central curvature radius of an image-side surface of the fifth lens.