Camera optical lens

A camera optical lens, consisting of nine-piece lenses, from an object side to an image side:

• a first lens having a positive refractive power;
• a second lens having a positive refractive power;
• a third lens having a negative refractive power;
• a fourth lens having a positive refractive power;
• a fifth lens having a positive refractive power;
• a sixth lens having a negative refractive power;
• a seventh lens having a positive refractive power;
• an eighth lens having a positive refractive power;
• and
• a ninth lens having a negative refractive power,
• wherein the camera optical lens satisfies following conditions:
• 3.50≤f1/f≤6.50;
• 3.00≤d13/d14≤15.00;
• 1.07≤f5/f≤3.50;
• 0.71≤(R9+R10)/(R9−R10)≤2.56;
• and
• 0.04≤d9/TTL≤0.13,
• 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,
• f5 denotes a focal length of the fifth lens,
• R9 denotes a central curvature radius of an object side surface of the fifth lens,
• R10 denotes a central curvature radius of an image side surface of the fifth lens,
• d9 denotes an on-axis thickness of the fifth lens, and
• TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.