Imaging system, imaging apparatus, portable terminal apparatus, onboard apparatus, medical apparatus and method of manufacturing the imaging system

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 expressing the subject;
• a coefficient storage section that will store a restoration coefficient corresponding to a state of a point image, which is projected onto the light receiving surface through the imaging lens and is expressed by the first image data output from the imaging device, when a maximum diameter of an effective region of the point image is a size covering three or more pixels;
• and
• a signal processing section that executes restoration processing on the first image data by using the restoration coefficient, 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 signal processing section performs the restoration processing in a condition where a pixel region covering total nine or more pixels including three or more pixels in a vertical direction and three or more pixels in a horizontal direction on the light receiving surface is set as a minimum unit, and
• 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, a second lens group including at least one lens and having a negative power, and a third lens group including at least one lens, wherein a lens positioned closest to an image side in the third lens group has a positive power.

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 expressing the subject;
• a coefficient storage section that stores a restoration coefficient corresponding to a state of a point image, which is projected onto the light receiving surface through the imaging lens and is expressed by the first image data output from the imaging device, when a maximum diameter of an effective region of the point image is a size covering three or more pixels;
• and
• a signal processing section that executes restoration processing on the first image data by using the restoration coefficient, 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 signal processing section performs the restoration processing in a condition where a pixel region covering total nine or more pixels including three or more pixels in a vertical direction and three or more pixels in a horizontal direction on the light receiving surface is set as a minimum unit, and
• 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, a second lens group including at least one lens and having a negative power, and a third lens group including at least one lens, wherein a lens positioned closest to an image side in the third lens group has a positive power.