An autochrome Lumière of a WWI Nieuport biplane fighter c. 1917.

The Autochrome Lumière is an early color photography process. Patented in 1903 by the Lumière brothers and marketed in 1907 it remained the only color photography process available on the market until 1935. WW1 - Nieuport biplane fighter. ... WW1 - Nieuport biplane fighter. ... Ypres, 1917, in the vicinity of the Battle of Passchendaele. ... Nieuport was a French aeroplane manufacturer founded in 1909 by Édouard de Nié Port. ... A biplane is a fixed-wing aircraft with two main wings of similar spans, normally one mounted above, and the other level with, the underside of the fuselage. ... 1917 was a common year starting on Monday (see link for calendar). ... Lens and mounting of a large format camera Photography is the technique of recording and generating permanent images, by the capturing and preservation of physical stimulus-patterns on a layer of photosensitive material. ... 1903 has the latest occurring solstices and equinoxes for 400 years, because the Gregorian calendar hasnt had a leap year for seven years or a century leap year since 1600. ... 1907 was a common year starting on Tuesday (see link for calendar). ...

Autochrome is an additive color process: the media contains a overlaying random mosaic of microscopic grains of potato starch, with lampblack filling the space between grains, atop a black and white film base. The grains are a mixture of those dyed orange, green and blue, and act as color filters. The film is processed as a slide, and the starch grains must remain in alignment with the film base after processing in order to allow the colors to be seen properly. In photography, a transparency is a still, positive image created on a transparent base using photochemical means. ...

The patent application describes the process somewhat differently: the grains are Red, Yellow and Blue (no blacklamp filling) and there are two layers of them, therefore when grains of different colors superimpose, this creates Orange, Violet and Green zones as well. The total surface is therefore covered with 6 different tints. It is necessary to invert the image to obtain a positive.

Autochromes were glass plaques until the 1930s when a film format appeared as well. The physics definition of a glass is a uniform amorphous solid material, usually produced when a suitably viscous molten material cools very rapidly, thereby not giving enough time for a regular crystal lattice to form. ... Events and trends Technology Jet engine invented Science Nuclear fission discovered by Otto Hahn, Lise Meitner and Fritz Strassmann Pluto, the ninth planet from the Sun, is discovered by Clyde Tombaugh British biologist Arthur Tansley coins term ecosystem War, peace and politics Socialists proclaim The death of Capitalism Rise to...

Autochrome film was gradually replaced by other processes, including Kodachrome, Agfacolor Neue and Kodacolor. This article is about the color film. ... Agfacolor is a series of colour photograpic products produced by the Agfa company of Germany. ...

External links

• autochrome.org (http://www.autochrome.org/)
• Patent application (in French) (http://www.ilford.com/html/us_english/patent-autochr.pdf)