François d'Aguilon

François d'Aguilon (1567 to 1617), also written d'Aguillon or in Latin Franciscus Aguilonius, was a Jesuit mathematician, physicist and architect from the Spanish Netherlands. Born in Brussels, the son of a secretary to Philip II of Spain, he became a Jesuit at Tournai in 1586, moved to Antwerp in 1598 and helped plan the Saint Carolus Borromeus church. In 1611 he started a special school of mathematics there, and the geometers it educated included Jean-Charles della Faille, André Tacquet and Theodorus Moretus. His book Opticorum Libri Sex, or Six Books of Optics, published in Antwerp in 1613 and illustrated by Peter Paul Rubens, included one of the first studies of binocular vision, gave stereographic projection and orthographic projection the names used today, introduced the term horopter, and inspired the work of Desargues and Christiaan Huygens. He died in Antwerp at the age of fifty.