A pair of diopters is centered on a red background. A large number of cylinders, accessories, and prisms are neatly stored with the diopters, so they can be easily accessed by the optometrist or optician.
www.Eyeglass-Lenses.com/diopters.htm
Chandelier (Photograph)
A chandelier is a light fixture mounted from the ceiling with light-bearing arms that is often ornately decorated with glass or crystal prisms. These prisms reflect light, as shown in this photo of a crystal chandelier in front of deep red curtains.
www.CrystalChandeliers.us/chandelier.htm
Chandelier in Poland (Photograph)
Crystal chandeliers use glass and crystal prisms to reflect light for a dramatic effect. This photo of a large crystal chandelier with lots of candles on a black background showcases the type of crystal chandelier that is often used in theaters.