The present invention relates to a transfer apparatus having a light source, a substantially parallel light generating element, a transmission-type image display and a photosensitive recording medium being arranged in a straight line along the traveling direction of light of the light source, for transferring, onto the photosensitive recording medium, a display image having passed through the transmission-type image display, the substantially parallel light generating element having a porous board provided a plurality of through-holes, and a thickness of the porous board is equal to or greater than three times a diameter of each of the through-holes or an corresponding diameter.