Édouard Belin
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Édouard Belin was born in Vesoul on March 5, 1876, and died on March 4, 1963 in Territet (Canton of Vaud, Switzerland).
He is the inventor in 1907 of a phototelegraphic apparatus called the phototelegraphic apparatus, a system able to send remote photographs, via telephone and telegraphic networks. Since 1914, a photograph of report is transmitted by telephotograph.
Its process was improved in 1921, so that it was able to transmit the images by radio waves.
In this apparatus, the transmitter traverses the original image point by point, and measures the light intensity via an electric eye. The intensity is conveyed to the receiver. There, a source of light reproduces the intensities measured by the electric eye, while carrying out same displacements exactly. By doing this, it impresses photographic paper, which makes it possible to obtain a copy of the original image.
The modern telecopiers and photocopiers use the same principle, with this close the sensor of light intensity was replaced by a sensor CCC, and that the device of impression is based on the laser technology, and either photographic.
Belin was a president of the French Company of photography.
Belin gave his name to a college of Vesoul (Haute-Saône).