Optical imaging lens assembly

An optical imaging lens assembly, comprising a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens which are provided in sequence from an object side to an image side along an optical axis, wherein

• the first lens has a refractive power;
• the second lens has a refractive power, wherein, an object-side surface of the second lens is a convex surface, and an image-side surface of the second surface is a concave surface;
• the third lens has a refractive power;
• the fourth lens has a refractive power;
• the fifth lens has a refractive power;
• the sixth lens has a positive refractive power, an object-side surface of the sixth lens is a convex surface, and an image-side surface of the sixth lens is a convex surface;
• and
• the seventh lens has a negative refractive power, an object-side surface of the seventh lens is a concave surface, and an image-side surface of the seventh lens is a concave surface,
• wherein a distance FFL on the optical axis between the image-side surface of the seventh lens and an imaging surface of the optical imaging lens assembly, and an axial distance TTL between an object-side surface of the first lens and the imaging surface satisfy FFL/TTL>0.3;
• a total effective focal length f of the optical imaging lens assembly satisfies 14.8 mm<f<17.3 mm.