Frederic Eugene Ives
His first invention was the collotype - obtaining halftone images using gelatin photosensitive layer.
Ives, FREDERICK EUGENE (Ives, Frederic Eugene) (1856-1937),American inventor. Born February 17, 1856, near Litchfield (Conn.) . At the age of 11 years he was admitted apprentice in the printing press of the newspaper " Litchfield inkvayerer ". I moved to Ithaca (pcs. New York), where in 1873 went to work in a printing house. I engaged in the development method of obtaining images to wet colloidal plates. In 1875 he opened his own photo studio in Ithaca and was the official photographer at Cornell University.
During this period, Ives began studying inventions. His first invention was the collotype - obtaining halftone images using gelatin photosensitive layer. In 1878, Ives moved to Philadelphia in 1881 and established a commercial release plates for halftone printing. Developed fotohromoskopicheskuyu system of color photography, which produces images with perfect transmission perspective, shape and color, viewed through a special chromoscopy. Other important inventions Ives are korotkotubusny single-lens binocular microscope, universal colorimeter special diffraction gratings for spectroscopy, many inventions related to color photography (including shooting moving objects with accurate natural colors) . Ives died in Philadelphia 27 May 1937.