PROBLEM TO BE SOLVED: To provide an imaging apparatus that is small, but can image a wide imaging range with high resolution.SOLUTION: The imaging apparatus comprises an imaging optical system including a brightness restrictor and a plurality of lens components, and an imaging part having a nonplanar light-receiving surface curved in a concave shape toward the imaging optical system. The lens component is a lens with only two surfaces, an object side surface and an image side surface which are in contact with air on an optical axis. The imaging optical system includes, in the order from the object side to the image side, a first lens component with negative refractive power, a second lens component with positive refractive power, and a third lens component with positive refractive power. The shape of the first lens component is a meniscus shape with a convex surface toward the object side, and the shape of the third lens component is double-convex. The following conditional expressions (1), (2) are satisfied. 0.7<；PS×Rimg<；1.5 (1) and 0.7<；θout90/θimg90<；1.5 (2).SELECTED DRAWING: Figure 1【課題】小型でありながら、広い撮影範囲を高い解像度で撮影が可能な撮像装置を提供すること。【解決手段】撮像装置は、明るさ絞りと、複数のレンズ成分と、を有する結像光学系と、結像光学系に向けて凹状に湾曲した非平面の受光面を有する撮像部と、を有し、レンズ成分は、光軸上にて空気に接触する面が物体側面と像側面の２面のみのレンズであり、結像光学系は、物体側から像側に順に、負の屈折力を有する第１レンズ成分と、正の屈折力を有する第２レンズ成分と、正の屈折力を有する第３レンズ成分と、からなり、第１レンズ成分の形状は、物体側に凸面を向けたメニスカス形状であり、第３レンズ成分の形状は、両凸形状であり、以下の条件式（１）、（２）を満足する。 ０．７＜｜ＰＳ×Ｒｉｍｇ｜＜１．５ （１） ０．７＜｜θｏｕｔ９０／θｉｍｇ９０｜＜１．５ （２）【選択図】図１
