Camera optical lens

Abstract

A camera optical lens includes, from an object side to an image side: a first lens having a negative refractive power; a second lens having a positive refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power. 2.50≤f3/f≤6.00, −2.00≤R4/R3≤−1.00, and 1.00≤d1/d2≤1.80. f denotes a focal length of the camera optical lens; f3 denotes a focal length of the third lens; R3 denotes a curvature radius of an object-side surface of the second lens; R4 denotes a curvature radius of an image-side surface 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. The camera optical lens can achieve good optical performance while achieving ultra-thin, wide-angle lenses having large apertures.

Dependencies are inferred from the claim text.