Patent ID: 10942338

Abstract:
There is provided an imaging lens with high-resolution which satisfies the wide field of view, the low-profileness and the low F-number in well balance, and excellently corrects aberrations. An imaging lens comprises in order from an object side to an image side, a first lens having negative refractive power, an aperture stop, a second lens, a third lens being a double-aspheric lens, a fourth lens having positive refractive power, and a fifth lens being a double-sided aspheric lens, wherein a below expression is satisfied: −0.07<(N1−1)/(r1×f)×1000<0.07 where  N1: refractive index at d-ray of the first lens,  r1: curvature radius of the object-side surface of the first lens,  f: focal length of the overall optical system.