Rosing, Boris L.( Russia inventor of television)
Comments for Rosing, Boris L.
Biography Rosing, Boris L.
Boris L. Rosing was born in 1869 in the family of St. Petersburg official. As a child Rosing fond of music and literature.
After the physical-mathematical faculty of St. Petersburg University Boris L. carried away by the idea of transmitting pictures over a distance.
He came to the conclusion that can only send images using electron-beam tube, which has been known since the late XIX century, as well as with an external photoelectric effect, open A.G. Stoletov.
In 1907, Rosing in Russia received a patent (privilege) on the method of "electrical transmission of images," secured him a right of primacy.
As converter light image into an electric current applied Boris L. photocell. He used an optical system similar to photographic. A "scan" received with rotating mirror. With him was obtained by the image line by line, and then converted into electricity.
These currents are fed to the CRT Brown, forcing through the electrode-light modulator with varying brightness of the screen. To be seen on the screen the same image, as in the transmitting device, Boris L. Rosing built an electromagnetic scanner - coil, deflecting an electron beam in the tube Brown. The number of scan lines was 12 (in most modern TV sets - 625, and on the monitors - up to several thousand).
By 1912 Rosing has developed all the basic elements of modern black-and-white television tubes. His works became known in many countries around the world, and the patent was found in the United States, Germany and the UK.
In 1933, Boris Rosing L. died.