Loyd Ancile Jones (April 12, 1884 – May 15, 1954) was an American scientist who worked for Eastman Kodak Company, where he was head of its physics department for many years.

Following graduate school, Jones moved to Washington D.C., where he worked for several years as a laboratory assistant at the U.S. Bureau of Standards doing research in photometry, colorimetry, spectro-photometry, spectroscopy, and retinal sensitivity.

In 1912, he joined the scientific research staff at Eastman Kodak Company, where he became chief physicist in 1916, a position he continued in until his retirement (Behrens 2009, p. 201).

In connection with his research of naval camouflage, Jones and his staff developed in the laboratory an “experimental ocean,” which used an observation tank, artificial sun, movable sky, and other components that simulated outdoor viewing conditions, as miniature camouflaged ships were observed through a submarine periscope.

He was responsible for at least eighteen registered patents, and authored dozens of articles on such subjects as photometry, physical optics, illuminating engineering, colorimetry, photography and motion pictures.