Camera optical lens

A camera optical lens comprising, from an object side to an image side in sequence:

• 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, a fifth lens having a positive refractive power, a sixth lens having a positive refractive power, a seventh lens having a negative refractive power;
• wherein the camera optical lens further satisfies the following conditions:
• 1<f1/f<1.5;
• 1.70<n1<2.2;
• −2<f3/f4<2;
• −10<(R13+R14)/(R13−R14)<10;
• 0.01<d1/TTL<0.05;
• where
• f:
• the focal length of the camera optical lens;
• f1:
• the focal length of the first lens;
• f3:
• the focal length of the third lens;
• f4:
• the focal length of the fourth lens;
• n1:
• the refractive power of the first lens;
• d1:
• the thickness on-axis of the first lens;
• TTL:
• the total optical length of the camera optical lens;
• R13:
• the curvature radius of object side surface of the seventh lens;
• R14:
• the curvature radius of image side surface of the seventh lens.