OPTICAL IMAGING LENS

WIPO Patent Application WO/2019/105139

A1

Provided is an optical imaging lens, comprising in order from an object side to an image side along an optical axis: a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), a sixth lens (E6), a seventh lens (E7) and an eighth lens (E8). Wherein, the first lens (E1) has a positive power, and an object side surface (S1) of the first lens (E1) is a convex surface. the second lens (E2) has a negative power, the object side surface (S3) of the second lens (E2) is a convex surface, and an image side surface (S4) of the same is a concave surface. the third lens (E3) has a positive power or a negative power; the fourth lens (E4) has a positive power or a negative power; the fifth lens (E5) has a positive power or a negative power; the sixth lens (E6) has a positive power or a negative power, and an object side surface (S11) of the sixth lens (E6) is a convex surface; the seventh lens (E7) has a positive power or a negative power; the eighth lens (E8) has a positive power or a negative power, and the object side surface (S15) of the eighth lens (E8) is a convex surface, and the image side surface (S16) of the same is a concave surface. An effective focal length f1 of the first lens (E1) and a center thickness CT1 of the first lens (E1) on the optical axis satisfy 3.0