Optical imaging lens assembly

An optical imaging lens assembly, sequentially from an object side to an image side of the optical imaging lens assembly along an optical axis, comprising:

• a first lens having a positive refractive power;
• a second lens having a positive refractive power;
• a third lens having a negative refractive power;
• a fourth lens having a refractive power, an object-side surface of the fourth lens being a concave surface, and an image-side surface of the fourth lens being a convex surface;
• a fifth lens having a refractive power;
• a sixth lens having a positive refractive power, an object-side surface of the sixth lens being a concave surface, and an image-side surface of the sixth lens being a convex surface;
• a seventh lens having a refractive power;
• and
• wherein f/EPD<1.5, where f is an effective focal length of the optical imaging lens assembly and EPD is an entrance pupil diameter of the optical imaging lens assembly;
• and
• 1.0<f1/f<2.0, where f is the effective focal length of the optical imaging lens assembly and f1 is an effective focal length of the first lens.