Frederic Eugene Ives

Ives, Frederic Eugene, 1856–1937, American inventor, b. Litchfield, Conn. A pioneer in the development of orthochromatic and trichromatic photography and of photoengraving, he followed an earlier suggestion by James Clerk Maxwell and produced in 1881 the first set of trichromatic plates. In 1878 he devised the first practical halftone process of photoengraving, developing it in 1886 to the process which came into general use. Among his other inventions are the short-tube, single-objective binocular microscope; the parallax stereogram; and a process for moving pictures in natural colors. His son Herbert Eugene Ives, 1882–1953, inventor and physicist, b. Philadelphia, was active in the development of television. He demonstrated the transmission via telephone wires of black-and-white pictures in 1924 and of color pictures in 1929. He made a number of important contributions to color science and invented the first practical artificial-daylight lamp.

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