The Early Development of the Fresnel Lens: Part 2 (Louis Sautter)

Louis Sautter (pronounced So-tay) completed engineering school at the Central School of Arts and Manufactures in 1846. Helped by one backer, Fernand Raoul-Duval, Sautter entered the navigation aids business in 1852, when he assumed ownership and management of the company that would carry his name. The business was previously wwned by Francois Soleil Sr., which by this time had passed from him to his son-in-law Jean Jacques Francois and ultimately to Francois' son-in- law Theodore Letourneau. The factory was then located at 37 Avenue Montaigne on the Champs-Elysees in Paris.