Camera optical lens

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 having a negative refractive power;
• a fourth lens having a positive refractive power;
• and
• a fifth lens having a negative refractive power,
• wherein the camera optical lens satisfies following conditions:
• −3.50≤f2/f≤−1.50;
• 10.00≤d1/d2≤35.00;
• 1.80≤(R5+R6)/(R5−R6)≤8.00;
• R9/d9≤−15.00;
• and
• −30.00≤R2/R1≤−10.00,
• where
• f denotes a focal length of the camera optical lens;
• f2 denotes a focal length of the second lens;
• d1 denotes an on-axis thickness of the first lens;
• d2 denotes an on-axis distance from an image side surface of the first lens to an object side surface of the second lens;
• R5 denotes a curvature radius of an object side surface of the third lens;
• R6 denotes a curvature radius of an image side surface of the third lens;
• R9 denotes a curvature radius of an object side surface of the fifth lens;
• d9 denotes an on-axis thickness of the fifth lens;
• R1 denotes a curvature radius of an object side surface of the first lens;
• R2 denotes a curvature radius of the image side surface of the first lens.