Demonstration of Fraunhofer diffraction by a single slit

Demonstration of Fraunhofer diffraction by two slits

Demonstration of Fraunhofer diffraction by three slits

Demonstration of Fraunhofer diffraction by four, five, six, seven, eight, nine, and more slits

Demonstration of Fraunhofer diffraction by multiple slits with line spacings of 100 per inch, 200 per inch, 300 per inch, and 2000 per inch

Demonstration of Fraunhofer diffraction by multiple slits as a function of slit orientation