Camera optical lens

Abstract

Provided is a camera optical lens, including first, second and fifth lenses having negative refractive power, third, fourth and sixth lenses having positive refractive power. The first and third lenses are made of glass material. Refractive index of third lens is n3, focal length of first lens is f1, focal length of second lens is f2, on-axis thickness of fifth lens is d9, on-axis distance between fifth and sixth lenses is d10, central curvature radii of object-side and image-side surfaces of second lens are R3 and R4, total track length, image height, and field of view of the camera optical lens is TTL, IH, and FOV, respectively, and following relations are satisfied: n3≥1.70; 1.00≤f2/f1≤2.00; 1.30≤d10/d9≤4.00; 1.70≤R4/R3≤4.00; 0.02≤TTL/(IH*FOV)≤0.03. The camera optical lens has excellent optical characteristics and characteristics of large aperture, ultra-wide-angle, and miniaturization, and is particularly suitable for various kinds of camera lens assemblies.