IMAGE-TAKING LENS SYSTEM, IMAGE-TAKING DEVICE PROVIDED WITH AN IMAGE-TAKING LENS SYSTEM, AND PORTABLE TERMINAL PROVIDED WITH AN IMAGE-TAKING DEVICE

摘要

The imaging lenses of the first lens (L1) having a positive refractive power, an aperture stop (s3), and has a refractive power of the negative phase (像) the second lens facing a concave surface on the side (L2) and a positive refractive power and the third lens (L3) having a negative refractive power and having a concave surface facing the image side having a fourth lens (L4), and satisfies the predetermined condition. ;