Camera optical lens

Abstract

The present invention provides a camera optical lens, including, from an object side to an image side, a first lens having a positive refractive power, a second lens a negative refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, and a fifth lens. At least one of the first lens to the fifth lens has a free-form surface, and the camera optical lens satisfies 0.50≤f3/f≤1.20; and 1.50≤R7/R8, where f denotes a focal length of the camera optical lens, f3 denotes a focal length of the third lens, R7 is a central curvature radius of an object side surface of the fourth lens, and R8 is a central curvature radius of an image side surface of the fourth lens. The camera optical lens has excellent optical performance while meeting requirements of a long focal length and ultra-thinness.

Dependencies are inferred from the claim text.