ambrotype


ambrotype
ambrotype (n.) 1855, American English, apparently from Gk. ambrotos "immortal, imperishable" (see AMBROSIA (Cf. ambrosia)), with second element from DAGUERREOTYPE (Cf. daguerreotype). A type of photograph on glass with lights given by silver and shades by a dark background showing through.
This invention consists in an improved process of taking photographic pictures upon glass, and also of beautifying and preserving the same, which process I have styled "ambrotype." My improved process has reference to the art of taking pictures photographically on a film of collodion upon the surface of a sheet of glass, the collodion being suitably prepared for the purpose. By the use of the said process, the beauty and permanency of such pictures are greatly increased, and I have on this account styled the process "ambrotype," from the Greek word ambrotos, immortal. ["Specification of the Patent granted to James A Cutting, of Boston, in the United States of America, Photographer, for an Improved Process of taking Photographic Pictures upon Glass and also of Beautifying and Preserving the same. Dated London, July 26, 1854," printed in "Journal of the Franklin Institute," September 1855]

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  • Ambrotype — Am bro*type ( t[imac]p), n. [Gr. a mbrotos immortal + type.] (Photog.) A picture taken on a plate of prepared glass, in which the lights are represented in silver, and the shades are produced by a dark background visible through the unsilvered… …   The Collaborative International Dictionary of English

  • ambrotype — ☆ ambrotype [am′brō tīp΄, am′brətīp΄ ] n. [< Gr ambrotos, immortal (see AMBROSIA) + TYPE] an early kind of photograph, consisting of a glass negative backed by a dark surface so as to appear positive …   English World dictionary

  • Ambrotype — The ambrotype process (from Greek ambrotos , immortal ) or amphitype is a photographic process that creates a positive photographic image on a sheet of glass using the wet plate collodion process. It was patented in 1854 by James Ambrose Cutting… …   Wikipedia

  • Ambrotype — L’ambrotype est un procédé photographique élaboré par James Ambrose Cutting en 1854 et qui a concurrencé le daguerréotype en raison de la rapidité d obtention des images (2 à 4 secondes) et de son prix de revient peu coûteux. Technique :… …   Wikipédia en Français

  • ambrotype — noun Etymology: Greek ambrotos + English type Date: 1858 a positive picture made of a photographic negative on glass backed by a dark surface …   New Collegiate Dictionary

  • ambrotype — /am breuh tuyp /, n. Photog. an early type of photograph, made by placing a glass negative against a dark background. [1850 55, Amer.; < Gk ámbro(tos) immortal (see AMBROSIA) + TYPE] * * * …   Universalium

  • ambrotype — noun an early type of photograph in which a glass negative appears positive when displayed on a black background …   Wiktionary

  • ambrotype — n. photograph produced on a plate of glass in which light portions are represented in silver and dark portions as the clear glass placed against a black background (Art) …   English contemporary dictionary

  • Ambrotype —    A photographic process introduced in 1851 52, which quickly replaced the earlier daguerreotypes because they were cheaper and easier to view. It used weak collodion negatives which were then bleached and backed by a black background which… …   Glossary of Art Terms

  • ambrotype — am·bro·type …   English syllables