Optical imaging lens assembly

An optical imaging lens assembly comprising, sequentially from an object side to an image side of the optical imaging lens assembly, 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 with a convex object side surface and a concave image side surface;
• the second lens has a negative refractive power with a convex object side surface and a concave image side surface;
• the third lens has a refractive power;
• the fourth lens has a refractive power with a concave image side surface;
• the fifth lens has a refractive power;
• the sixth lens has a negative refractive power with a convex object side surface and a concave image side surface;
• a curvature radius R9 of an object side surface of the fifth lens and a curvature radius R10 of an image side surface of the fifth lens satisfy−3.5<R9/R10<0.6;
• and
• a curvature radius R1 of the object side surface of the first lens, a curvature radius R2 of the image side surface of the first lens, a curvature radius R3 of the object side surface of the second lens, and a curvature radius R4 of the image side surface of the second lens satisfy 0.2≤(R1+R2)/(R3+R4)<0.5.

An optical imaging lens assembly comprising, sequentially from an object side to an image side of the optical imaging lens assembly, 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 with a convex object side surface and a concave image side surface;
• the second lens has a negative refractive power with a convex object side surface and a concave image side surface;
• the third lens has a refractive power;
• the fourth lens has a refractive power with a concave image side surface;
• the fifth lens has a refractive power;
• the sixth lens has a negative refractive power with a convex object side surface and a concave image side surface;
• and
• an effective focal length f1 of the first lens and an effective focal length f of the optical imaging lens assembly satisfy 0.7<f1/f<1,
• the effective focal length f of the optical imaging lens assembly and half of a maximum field of view HFOV of the optical imaging lens assembly satisfy 3.8 mm<f*TAN(HFOV)<5 mm, and
• a curvature radius R1 of the object side surface of the first lens, a curvature radius R2 of the image side surface of the first lens, a curvature radius R3 of the object side surface of the second lens, and a curvature radius R4 of the image side surface of the second lens satisfy 0.2≤(R1+R2)/(R3+R4)<0.5.