Visitor Experience
Visitors experiment, putting lenses and prisms in colored light beams or white light beams and observing the different results. The white beam splits into a nice spectrum. The visitors can block light of some colors using filters.
Background
Ray optics describes light propagation in terms of „rays“. The „ray“ in geometric optics is an abstraction, or „instrument“, which can be used to approximately model how light will propagate. Light rays bend at the interface between two dissimilar media, and may curve in a medium where the refractive index changes. Geometrical optics provides rules for propagating these rays through an optical system. The path taken by the rays indicates how the actual wave will propagate.
This is a significant simplification of optics that fails to account for optical effects such as diffraction and polarization.
