Optical lens assembly

An optical lens assembly, comprising sequentially a first lens, a second lens, a third lens and at least one subsequent lens from an object side to an image side along an optical axis, and having a total effective focal length f,

• wherein the first lens has a positive refractive power, and an object-side surface of the first lens is a convex surface;
• the second lens has a negative refractive power, and an object-side surface of the second lens is a concave surface;
• and
• the third lens has a positive refractive power or a negative refractive power,
• wherein a combined refractive power of the first lens, the second lens and the third lens is a positive refractive power, and a combined focal length f123 of the first lens, the second lens and the third lens and the total effective focal length f satisfy:
• 0.6<f123/f<1.0,
• and;
• wherein a radius of curvature R2 of an image-side surface of the first lens and a radius of curvature R3 of the object-side surface of the second lens satisfy:
• 0<(R2−R3)/(R2+R3)<1.0,
• wherein the at least one subsequent lens includes a fourth lens having a negative refractive power, and an air spacing T34 between the third lens and the fourth lens on the optical axis and a center thickness CT4 of the fourth lens on the optical axis satisfy:
• 0.9<T34/CT4<1.4.