Laser beam diffraction off coil and being reassembled (DNA analysis simpulation a la Rosalind Franklin's experiment)

6Q20.10 • E+10+55

1] Monochromatic Helium-Neon laser light is passed over the filament of a Halogen Lamp and the resulting diffraction pattern is displayed on a white projection screen (figure 1). No lens is used in this part. 2] A 1” f.l. lens is inserted into the diffracted beam from the filament and the diffraction patterns re-assemble into a projected image of the filament (figure 2).