Carl Zeiss was a German maker of optical instruments best known for the company he founded, Carl Zeiss Jena. Zeiss made contributions to lens manufacturing that have aided the modern production of lenses. Raised in Weimar, Germany, he opened a lens-making workshop in the 1840s in the city of Jena. At first his lenses were only used in the production of microscopes, but when cameras were invented, his company began manufacturing high-quality lenses for cameras.

https://en.wikipedia.org/wiki/Carl_Zeiss