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['e]phore Niepce, and still used in photo-engraving. It consists essentially in exposing under a design or in a camera a polished metal plate coated with a preparation of asphalt, and subsequently treating the plate with a suitable solvent. The light renders insoluble those parts of the film which is strikes, and so a permanent image is formed, which can be etched upon the plate by the use of acid. [Webster 1913 Suppl.]

4. Photography. [Archaic.] --R. Hunt. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • 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… …   Wikipedia

  • 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

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