Equilateral Acrylic Prism Set, 3-Piece

This set of three equilateral acrylic prisms includes 20 mm, 50 mm, and 100 mm lengths, each with 25 mm faces. All three prisms are made of highly polished acrylic and are suitable for optical experiments involving light refraction and wavelength separation. The prisms produce visible rainbow spectra even under room lighting conditions. Using a narrow slit cut in dark paper in front of a light source such as a smartphone LED, the prisms will refract white light into its component colors. Moving the target surface farther from the prism produces a larger, more distinct spectrum. These prisms are useful for physics instruction as well as for photography lighting effects.