Carl Zeiss is a world-renowned manufacturer of optical products, founded in 1846 in Jena, Germany. After World War II, the Zeiss company was divided into two, Carl Zeiss AG and Carl Zeiss - Jena People's Enterprise, the two companies merged again in 1990. Zeiss products include lenses, cameras, microscopes, telescopes, spectacle lenses, night vision lenses, military scopes, etc.