The figure or picture of any object formed at the focus of a
   lens or mirror, by rays of light from the several points of the object
   symmetrically refracted or reflected to corresponding points in such
   focus; this may be received on a screen, a photographic plate, or the
   retina of the eye, and viewed directly by the eye, or with an eyeglass,
   as in the telescope and microscope; the likeness of an object formed by
   reflection; as, to see one's image in a mirror.