Imaging lens assembly

An imaging lens assembly comprising, sequentially from an object side of the imaging lens assembly to an image side of the imaging lens assembly along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, wherein:

• the first lens has a positive refractive power;
• the second lens has a negative refractive power, and both of an object-side surface and an image-side surface of the second lens are concave surfaces;
• the third lens has a positive refractive power, and an image-side surface of the third lens is a convex surface;
• the fourth lens has a negative refractive power, and an object-side surface of the fourth lens is a concave surface;
• each of the fifth lens and the sixth lens has a positive refractive power or a negative refractive power;
• a total effective focal length f of the imaging lens assembly and half of a diagonal length ImgH of an effective pixel area on an imaging plane of the imaging lens assembly satisfy 2.0≤f/ImgH≤3.0;
• the total effective focal length f of the imaging lens assembly and a spaced distance T23 along the optical axis between the second lens and the third lens satisfy 8<f/T23<12;
• a combined focal length f12 of the first lens and the second lens and a center thickness CT1 along the optical axis of the first lens satisfy 3<f12/CT1<4.5;
• and
• the total effective focal length f of the imaging lens assembly and an effective focal length f3 of the third lens satisfy 0.6<f/f3≤1.0.