Optical phenomenon refers to any event or occurrence that involves light and its interactions with matter. A few synonyms for this term include optical illusion, visual phenomena, light effect, and light phenomenon. Some other variations include photon emission, light scattering, refraction, dispersion, diffraction, polarization, and interference. Each of these terms describes a particular aspect of the way that light behaves or interacts with objects in its path. Optical phenomena can also be seen in natural occurrences like rainbows, mirages, auroras, and halos. These variants of optical phenomenon offer different ways of looking at our understanding of how light behaves and how we perceive it.