Heliography (in French, "héliographie") is the photographic process invented by Joseph Nicéphore Niépce around 1825, and which he used to make the earliest known permanent photograph from nature, "
View from the Window at Le Gras" (c. 1826). The process used bitumen, as a coating on glass or metal, which hardened in relation to exposure to light. When the plate was washed with oil of lavender, only the hardened image area remained.
The word has also been used to refer to other phenomena: for description of the sun (cf geography), for photography in general, for signalling by
heliograph(a device less commonly called a heliotrope or helio-telegraph), and for photography "of" the sun. [Descriptions of the sun, photography in general, and signalling by heliotrope: "Oxford English Dictionary" 2nd ed. (1989) s.v. "Heliography". Photography of the sun: As used by and in discussion of Hiroshi Yamazaki.]
* [http://www.getty.edu/vow/AATFullDisplay?find=heliography&logic=AND¬e=&english=N&prev_page=1&subjectid=300133322 Art & Architecture Thesaurus, s.v. "heliography"] . Accessed 10 December 2007.
* [http://www.hrc.utexas.edu/exhibitions/permanent/wfp/ Harry Ransom Center. The University of Texas at Austin. "The First Photograph"] . Accessed 10 December 2007.
* [http://books.google.com/books?id=Mc90ZgreC8QC An Improved Method in the Art of Signalling for Military & Scientific Purposes (1887)] . Accessed 1 June 2008.
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Heliography — He li*og ra*phy, n. 1. [Helio + graphy.] The description of the sun. [Webster 1913 Suppl.] 2. The system, art, or practice of telegraphing, or signaling, with the heliograph. [Webster 1913 Suppl.] 3. An early photographic process invented by Nic[ … The Collaborative International Dictionary of English
heliography — See heliographer. * * * … Universalium
heliography — noun a) The scientific study of the sun b) The art of making a heliograph … Wiktionary
Heliography — Гелиография … Краткий толковый словарь по полиграфии
HELIOGRAPHY — a method of signalling from distant points by means of the sun s rays flashed from mirrors; messages can in this manner be transmitted a distance of 190 m.; it has been found of great practical value in military operations … The Nuttall Encyclopaedia
heliography — he·li·og·ra·phy … English syllables
heliography — ˌhēlēˈägrəfē noun ( es) 1. [French héliographie, from hélio heli (I) + graphie graphy] : an early photographic process producing a photoengraving on a metal plate coated with an asphalt preparation; broadly : photography … Useful english dictionary
Daguerreotype — 1840 1841 Camerae obscurae and plates for Daguerreotype called Grand Photographe produced by Charles Chevalier (Musée des Arts et Métiers) … Wikipedia
Photography — is the art, science and practice of creating durable images by recording light or other electromagnetic radiation, either electronically by means of an image sensor or chemically by means of a light sensitive material such as photographic… … Wikipedia
Nicéphore Niépce — Joseph Nicéphore Niépce Nicéphore Niépce, circa 1795. Born March 7, 1765(1765 03 07) Chalon sur Saône, Saône et Loire Died July 5, 1833( … Wikipedia