How diffraction applies to Funny Glasses

Funny Glasses work because of tiny irregularities that are equally spaced in both directions on the lens. When you look through the funny glasses you see a rainbow because the light is scattered in different directions. This is one example of diffraction.

These are some effects of the Funny Glasses

This is a laser through one lens

This an example of basic diffraction through the funny glasses. The laser is bent at different angles, because of the many tiny openings in the lens.

This is a laser through two lenses

There are more dots in this picture because we put two different lenses on top of each other, which bent the light twice.

This is a ceiling light through a lens

This can be compared to Young's experiment, which concerns passing light through two different small slits. The light here is passed not through two slits, but through many. This light is polychromatic, so the different wavelengths of light are bent at different angles. The violet, which has a small wavelength, is bent at the smallest angle while red, which has the biggest wavelength, is bent the most. The wavelength is directly proportional to the sine of the angle that it is bent at.

This is an incandescent light through a lens

In an incandescent light you can see that violet is bent the least, and red is bent the most.

This is a mercury lamp through a lens

It is evident from this photo that there are some colors of the white light spectrum are missing. This is an example of an emission spectrum of mercury, because certain wavelengths of light are missing.