Édouard Belin (5 March 1876 – 4 March 1963) was a French photographer and inventor. In 1907 Belin invented a phototelegraphic apparatus called the
Bélinographe (télestéréographe)—a system for receiving
photographs over telephone wires via telegraphic networks.
Belin's invention had been used for journalistic photos since 1914, and the process was improved by 1921 to enable transmission of images by
radio waves
Radio waves (formerly called Hertzian waves) are a type of electromagnetic radiation with the lowest frequencies and the longest wavelengths in the electromagnetic spectrum, typically with frequencies below 300 gigahertz (GHz) and wavelengths ...
.
From 1926, Belin worked on a television apparatus. In 1926, with Holweg, he tested the capacity for the eye to perceive pictures proposed at a very high speed, using a mirror drum.
Belin was born in
Vesoul
Vesoul ( ) is a Communes of France, commune in the predominantly rural Haute-Saône department, of which it is the Prefectures in France, prefecture, or capital, in the Regions of France, region of Bourgogne-Franche-Comté located in eastern Franc ...
,
Haute-Saône, France, and died, aged 86, in
Territet
Territet (Montreux) is a locality which is part of the Montreux commune, in the Vaud canton, Switzerland.
Geography
Territet is located between the city center of Montreux and the village of Veytaux, within the municipality of Montreux, o ...
,
Canton of Vaud
Vaud ( ; , ), more formally Canton of Vaud, is one of the 26 cantons forming the Swiss Confederation. It is composed of ten districts; its capital city is Lausanne. Its coat of arms bears the motto "Liberté et patrie" on a white-green bicolou ...
, Switzerland.
Bélinographe
In this apparatus, the transmitter traverses the original image point by point. At each point a measurement of light intensity is made with an
electric eye. The measurement is conveyed to the receiver. There, a variable intensity light source reproduces the light measured by the electric eye, while carrying out same displacements exactly. By doing this, it exposes the photographic paper and makes it possible to obtain a copy of the original image.
Other scientists such as
Arthur Korn had also been developing technology to transmit images over long distances.
Modern
telecopiers and
photocopiers use the same principle. With these devices, the source light intensity sensor was replaced by a CMOS sensor. The destination device that makes the photographic impression is based on either light or laser technology.
Legacy
Belin gave his name to a high school of
Vesoul
Vesoul ( ) is a Communes of France, commune in the predominantly rural Haute-Saône department, of which it is the Prefectures in France, prefecture, or capital, in the Regions of France, region of Bourgogne-Franche-Comté located in eastern Franc ...
,
Haute-Saône, France.
Lycée Edouard Belin
missiontice.ac-besancon.fr
See also
* Display resolution
The display resolution or display modes of a digital television, computer monitor, or other display device is the number of distinct pixels in each dimension that can be displayed. It can be an ambiguous term especially as the displayed resoluti ...
* Fax
* Gamma correction
Gamma correction or gamma is a Nonlinearity, nonlinear operation used to encode and decode Relative luminance, luminance or CIE 1931 color space#Tristimulus values, tristimulus values in video or still image systems. Gamma correction is, in the s ...
* Image scanner
An image scanner (often abbreviated to just scanner) is a device that optically scans images, printed text, handwriting, or an object and converts it to a digital image. The most common type of scanner used in the home and the office is the flatbe ...
*
* Telerecording (UK)
* Wirephoto
References
External links
Comprehensive bibliography of texts by or about Edouard Belin
* ttp://faxauthority.com/edouard-belin Edouard Belin – Fax and Belinographe Inventor at FaxAuthority.com
{{DEFAULTSORT:Belin, Edouard
1876 births
1963 deaths
People from Vesoul
20th-century French inventors
Grand Officers of the Legion of Honour
Telegraph engineers and inventors