A scanning device optically scans picture information and further information provided on an original film and makes the information available as digitized data, the scanned information not being converted into the original information contents. This beam projecting unit includes an opening detecting switch for detecting the physical opening of the projector cover and a transmission request generating circuit operable in response to the detection by the opening detecting switch to output a received beam level transmission request signal B to the beam receiving unit. The arrangement is then processed so as to form a single solid component having first, second and third regions 16, 18, 20 having first, second and third compositions A, B, C respectively.