A lens holder 13 that holds a lens 6 in an inner portion thereof, an image pickup device 11 including a light-receiving section 11j, the image pickup device 11 being positioned at a rear in an optical axis direction L of the lens 6, a cover glass 12 attached to a facing surface 11f of the image pickup device 11, and a fitting portion K formed in at least an outer circumferential face 12zg of the cover glass 12, the fitting portion K allowing a rear end-side part 13b of the lens holder 13 to be fitted thereon are included, and the lens holder 13 and the image pickup device 11 are each formed to have a size allowing the lens holder 13 and the image pickup device 11 to have a same width in a width direction R when the rear end-side part 13b is fitted on the fitting K portion.
