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Encyclopedia > Lippman plate

Named after Gabriel Lippmann, physicist. The Lippmann Plate was an early form of colour photography developed in 1891. Categories: Possible copyright violations ... 1891 was a common year starting on Thursday (see link for calendar). ...


A glass plate is coated with transparent and grainless silver emulsion. It is the uncoated side which is exposed to the light with the emulsion in contact with a reflecting surface such as mercury. The incident light is reflected back on itself causing interference. This establishes standing waves in the emulsion at half the wavelength of the incident light which react with the photosensitive emulsion. The deposited silver then reflects light at various multiples of the original wavelength giving rise to bright colours.


However the technique is very insensitive and requires special equipment for viewing and it never came into general use.


  Results from FactBites:
 
Lippmann plate - Wikipedia, the free encyclopedia (193 words)
The Lippmann plate was an early form of colour photography developed in 1891.
It is the uncoated side which is exposed to the light with the emulsion in contact with a reflecting surface such as mercury.
The plate is then processed so that the recording becomes changes in the index of refraction of the gelatin.
washingtonpost.com - Live Online (3158 words)
Lippman notes that the greater challenge before the monarchy is to satisfy the aspirations of the majority -- and maintain its security and economic ties with the United States -- without further inciting the religious extremists whose rhetoric gives cover to the terrorists.
Lippman, a former Washington Post correspondent in the Middle East and an adjunct scholar at the Middle East Institute, will be online Monday, June 14 at 4 p.m.
Lippman: With all due respect, I remember the "experts" before the collapse of the Soviet Union saying "well, some time in the distant future, there'll be major changes, but not right away." Then, WHAM, and the whole system collapsed.
  More results at FactBites »


 

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