OPTICAL LENS SYSTEM

摘要

Disclosed is an optical lens system. The disclosed optical lens system comprises: a first lens having a negative refractive index and having a convex object side surface; a second lens having a positive refractive index and having a convex upper side surface toward the upper side; a third lens having the positive refractive index and having a convex upper side surface toward the upper side; a fourth lens having the positive refractive index and having both convex surfaces; and a fifth lens having the negative refractive index and having both convex surfaces arranged in order from the object side to the upper side.