Fresnel-Prisma

Machine-translated from the German article

A Fresnel prism or Fresnelprism [fʀɛˈnɛl] is a volume- and mass-reduced design of an optical prism. The principle is named after the French physicist Augustin Jean Fresnel and works analogously to the Fresnel lens. A film made of plastic, such as polyvinyl chloride, with Fresnel prisms is also called prism film (more precisely, Fresnel prism film).