Jules Duboscq
Louis Jules Duboscq was a French instrument maker, inventor, and pioneering photographer. He was known in his time, and is remembered today, for the high quality of his optical instruments.Duboscq was born at Seine-et-Oise in 1817. He was apprenticed in 1834 to Jean-Baptiste-François Soleil, a prominent instrument maker, and he married one of Soleil's daughters, Rosalie Jeanne Josephine, in 1839.
Among the instruments Duboscq built were a stereoscope, a colorimeter, a polarimeter, a heliostat and a saccharimeter.