Patent ID: 8049798

Claim:
An imaging device comprising: an optical system, an optical wavefront modulation element modulating an optical transfer function (OTF), a variable stop, an imaging element capturing an object image passed through the optical system, the variable stop, and the optical wavefront modulation element, a converting means for generating a dispersion-free image signal from a dispersed image signal of the object from the imaging element, a signal processing unit performing predetermined processing on the image signal, a memory means for storing operation coefficients of the signal processing unit, and a control means for controlling the stop, wherein the control means, when not closing the stop down to a predetermined value, inputs the dispersed image signal of the object from the imaging element to the converting means and inputs the dispersion-free image signal to the signal processing unit and, when closing the stop down to the predetermined value or more, inputs the dispersed image signal of the object from the imaging element to the signal processing unit without passing through the converting means.