Patent ID: 8111318

Claim:
An imaging system comprising: an imaging lens; an imaging device that has a light receiving surface on which a plurality of light receiving pixels are two-dimensionally arrayed and that forms first image data based on an optical image of a subject projected onto the light receiving surface through the imaging lens and outputs the first image data corresponding to the subject; and a signal processing section that executes restoration processing on the first image data, the restoration processing being executed to generate second image data equivalent to the first image data output from the imaging device when the resolving power of the imaging lens is higher, wherein the imaging lens includes in order from an object side thereof a first lens group including at least one lens and having a positive power, and a second lens group including at least one lens and having a positive power, and wherein the imaging lens and the imaging device are constructed such that a maximum diameter of an effective region of a point image, which is projected onto the light receiving surface through the imaging lens from any position of X, Y, and Z directions, becomes a size covering three or more pixels of the light receiving pixels.