Patent ID: 8422139

Claim:
An imaging module, comprising: an imaging lens; an image capturing element which receives light of an image formed by the imaging lens and which performs photoelectric conversion of the light; and a focus adjustment mechanism that adjusts a relative position of the imaging lens and the image capturing element, the imaging lens being in a shape of rotation symmetry in an optical effective aperture, wherein: a center region of the image has an image height of zero, a peripheral region of the image has an image height greater than zero, an image height-MTF property is designed such that, in at least one of a sagittal direction and a tangential direction, a maximum MTF value of a peripheral region where the image height is greater than zero is greater than an MTF value of a center region where the image height is zero, the imaging lens having an image surface that is concavely curved toward the image capturing element, the focus adjustment mechanism adjusting the relative position such that during image capturing the image surface of the imaging lens is positioned between an object to be captured and a best image surface position of the center region.