OPTICAL SYSTEM, CAMERA MODULE, AND ELECTRONIC DEVICE

WIPO Patent Application WO/2021/217289

A1

An optical system (10), from an object side to an image side, sequentially comprising: a first lens (L1) having positive refractive power, an object side surface (S1) of the first lens (L1) is convex in a paraxial region, and an image side surface (S2) of the first lens (L1) is concave in a paraxial region; a second lens (L2) having negative refractive power; a third lens (L3) having positive refractive power; a fourth lens (L4); a fifth lens (L5), together with the fourth lens (L4), forming a lens group having positive refractive power; and a six lens (L6) having negative refractive power. The optical system (10) satisfies the condition: -1.1