Hermann Wilhelm Vogel (1834-1898) was a German photo-chemist who made a key contributions to practical color photography. From 1879 he was Professor at the Technical University of Berlin. A chemist is a scientist who specializes in chemistry. ... a undated photography from 1905 to 1915 by Sergei Mikhailovich Prokudin-Gorskii Color photography was explored throughout the 1800s. ... The Central Institute for Modern Languages at the Technical University The Technical University of Berlin (TUB, TU Berlin, German: Technische Universität Berlin) is located in Berlin in Germany. ...
In 1873 he discovered how to increase the sensitivity of photographic emulsions, (which until then were then only sensitive to blue and UV light) to green light by adding dyes. By 1884 he had discovered how to extend the sensitivity into the orange. However the achievment of a fully panchromatic response, into the red, had to wait until fresh dye-discoveries, in the early 1900s, shortly after his death. Photographic film a sheet of plastic (polyester, celluloid (nitrocellulose) or cellulose acetate) coated with an emulsion containing light-sensitive silver halide salts (bonded by gelatin) with variable crystal sizes that determine the sensitivity or resolution of the film. ... Note: Ultraviolet is also the name of a 1998 UK television miniseries about vampires. ... Panchromatic is a term describing a type of photographic film that is sensitive to all wavelengths of visible light. ...
Feeds |
Contact