Diaphragm with 4 Multiple Slits and Gratings
Diaphragm with 3 ruled gratings
Ruled gratings
Diaphragm with 2 cross gratings
Diaphragm with a Single Slit and Rib
Diaphragm with 3 Circular Hole and Disc Paires
Diaphragm with 3 Double Slits of Different Widths