Translation: from english

Ponton, Mungo

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  • Ponton, Mungo — SUBJECT AREA: Photography, film and optics [br] b. 1801 Balgreen, Scotland d. 1880 Clifton, England [br] Scottish discoverer of the light sensitivity of potassium bichromate. [br] Employed as Secretary of the Bank of Scotland, Ponton was an… …   Biographical history of technology

  • Mungo Ponton — FRS (20 November 1801 – 3 August 1880) was a Scottish inventor who in 1839 created a method of permanent photography based on sodium dichromate. Mungo was a farmer s son, born and raised in Edinburgh. He became a legal apprentice and was admitted …   Wikipedia

  • Mungo — (also spelled Moungo) may refer to: Contents 1 People 2 Places 3 Other uses …   Wikipedia

  • Photography, film and optics — See also: INDEX BY SUBJECT AREA [br] Abney, William de Wiveleslie Acres, Birt Anschütz, Ottomar Archer, Frederick Scott Baekeland, Leo Hendrik Barnack, Oskar Bayard, Hippolyte …   Biographical history of technology

  • Impresión al carbono — La impresión al carbono es un antiguo procedimiento fotográfico que consiste en sumergir un tejido de carbono en una solución diluida de dicromato de potasio para obtener su sensibilización a la luz. Esta solución también incorpora carbono,… …   Wikipedia Español

  • photoengraving — /foh toh en gray ving/, n. 1. a photographic process of preparing printing plates for letterpress printing. 2. a plate so produced. 3. a print made from it. [1870 75; PHOTO + ENGRAVING] * * * Any of several processes for producing printing plates …   Universalium

  • Gum bichromate — is a 19th century photographic printing process based on the light sensitivity of dichromates. It is capable of rendering painterly images from photographic negatives. Gum printing is traditionally a multi layered printing process, but… …   Wikipedia

  • Goma bicromatada — Prima Vera de Robert Demachy, 1896. La goma bicromatada es una técnica de impresión fotográfica inventada a mediados del siglo XIX. Está basada en la propiedad de las sales de cromo (principalmente bicromato potásico y amónico) que al mezclarse… …   Wikipedia Español

  • Phototypie — (v. gr.), 1) die Kunst photographische Abbildungen zu ätzen, so daß sie durch den Druck vervielfältigt werden können; 2) die auf solche Weise erzeugten Abdrücke. Zur Vervielfältigung wird das photographische Bild entweder auf eine Metallplatte,… …   Pierer's Universal-Lexikon

  • PHOTOGRAPHIE — La perception de l’apparence du monde matériel par notre organe visuel a comme support la lumière visible ou les autres radiations électromagnétiques, rendues visibles par l’intermédiaire de phénomènes auxiliaires. L’emploi direct de l’ensemble… …   Encyclopédie Universelle

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