Antoine François Jean Claudet (12 August 1797 – 27 December 1867) was a French photographer and artist who produced daguerreotypes. He was born in Lyon, was active in Great Britain and died in London. He was a student of Louis Daguerre.
Having acquired a share in L. J. M. Daguerre's invention, he was one of the first to practice daguerreotype portraiture in England, and he improved the sensitizing process by using chlorine (instead of bromine) in addition to iodine, thus gaining greater rapidity of action. He also invented the red (safe) dark-room light, and it was he who suggested the idea of using a series of photographs to create the illusion of movement. The idea of using painted backdrops is also attributed to him.
From 1841 to 1851 he operated a studio on the roof of the Adelaide Gallery (now the Nuffield Centre), behind St. Martin's in the Fields church, London. He opened subsequent studios at the Colosseum in Regent's Park (1847–1851) and at 107 Regent Street (1851–1867).
In 1848 he produced the photographometer, an instrument designed to measure the intensity of photogenic rays; and in 1849 he brought out the focimeter, for securing a perfect focus in photographic portraiture. He was elected a fellow of the Royal Society in 1853, and in 1858 he produced the stereomonoscope, in reply to a challenge from Sir David Brewster. In 1851 he moved his business to 107 Regent Street, where he established what he called a "Temple to Photography."
Claudet received many honours, among which was the appointment, in 1853, as "Photographer-in-ordinary" to Queen Victoria, and the award, ten years later, of an honor from Napoleon III of France. Less than a month after his death, his "Temple to photography" was burnt down, and many of his most valuable photographic treasures were lost.
- THE PHOTOGRAPHOMETER Henry H. Snelling London Art Journal March, 1849
- THE FOCIMETER. IMAGE Journal of Photography of the George Eastman House February, 1952 Vol. 1, No. 2
- On the Stereomonoscope, a New Instrument by Which and apparently Single Picture Produces the Stereoscopic Illusion (January 1, 1857) A. Claudet Proceedings of the Royal Society of London: Philosophical Transactions of the Royal Society
- Ian P. Howard, Brian J. Rogers Perceiving in Depth, Volume 2: Stereoscopic Vision
- Anglo-American Name Authority File, s.v. "Claudet, A.", LC Control Number nr 88000067, cited 10 February 2006
- Union List of Artists Names, s.v. "Claudet, Antoine", cited 10 February 2006
- A brief biography of Antoine Claudet
- Solbert, Oscar N.; Newhall, Beaumont; Card, James G., eds. (February 1952). "The Focimeter". Image (Rochester, N.Y.: International Museum of Photography at George Eastman House Inc.) 1 (2): 1–2. Retrieved June 16, 2014.
- Biographical notes on Claudet, who started out as a glass merchant
This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Claudet, Antoine François Jean". Encyclopædia Britannica (11th ed.). Cambridge University Press.