Optical imaging lens assembly

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

• a first lens with a negative refractive power;
• a second lens with a refractive power, an image-side surface thereof being a convex surface;
• a third lens with a refractive power, an object-side surface thereof being a convex surface;
• and
• a fourth lens with a negative refractive power, an object-side surface thereof being a convex surface while an image-side surface being a concave surface, wherein
• ImgH is a half of a diagonal length of an effective pixel region on an imaging surface of the optical imaging lens assembly, and a spacing distance T12 of the first lens and the second lens on the optical axis, a spacing distance T23 of the second lens and the third lens on the optical axis and ImgH satisfy:
• 0.4<(T12+T23)/ImgH<0.6;
• an effective focal length f2 of the second lens and a curvature radius R2 of an image-side surface of the first lens satisfy:
• 0.1<f2/R2<1.8.