Boris Rosing
Encyclopedia
Boris Lvovich Rosing (1869–1933) was a Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

n scientist and inventor in the field of television.

Born to a family of Swedish descent, Rosing first envisioned a Television system using the CRT
Cathode ray tube
The cathode ray tube is a vacuum tube containing an electron gun and a fluorescent screen used to view images. It has a means to accelerate and deflect the electron beam onto the fluorescent screen to create the images. The image may represent electrical waveforms , pictures , radar targets and...

 on the receiving side in 1907. Rosing filed a patent application in Germany on November 26, 1907 and—on the improved version of his system—on March 2, 1911. He followed up with a demonstration of which a report was published in the Scientific American
Scientific American
Scientific American is a popular science magazine. It is notable for its long history of presenting science monthly to an educated but not necessarily scientific public, through its careful attention to the clarity of its text as well as the quality of its specially commissioned color graphics...

with diagrams and full description of the invention's operation.

Rosing's invention expanded on the designs of Paul Nipkow and his mechanical system of rotating lenses and mirrors. Accordingly, Rosing's system employed a mechanical camera device, but used very early cathode ray tube
Cathode ray tube
The cathode ray tube is a vacuum tube containing an electron gun and a fluorescent screen used to view images. It has a means to accelerate and deflect the electron beam onto the fluorescent screen to create the images. The image may represent electrical waveforms , pictures , radar targets and...

 (developed in Germany by Karl Ferdinand Braun
Karl Ferdinand Braun
Karl Ferdinand Braun was a German inventor, physicist and Nobel laureate in physics. Braun contributed significantly to the development of the radio and television technology: he shared with Guglielmo Marconi the 1909 Nobel Prize in Physics.-Biography:Braun was born in Fulda, Germany, and...

) as a receiver. The system was primitive, but it was definitely one of the first experimental demonstrations where the cathode ray tube was employed for the purposes of television.

According to the generally established view V. K. Zworykin
Vladimir Zworykin
Vladimir Kozmich Zworykin was a Russian-American inventor, engineer, and pioneer of television technology. Zworykin invented a television transmitting and receiving system employing cathode ray tubes...

 was a pupil of Rosing and assisted him in some of his laboratory work.

Rosing continued his television research until 1931 when he was exiled as a counter-revolutionary to Kotlas
Kotlas
Kotlas is a town in the southeast of Arkhangelsk Oblast, Russia, situated at the confluence of the Northern Dvina and Vychegda Rivers. Administratively, it is incorporated as a town of oblast significance . It also serves as the administrative center of Kotlassky District, by which it is...

 without right to work, but in 1932 was moved to Archangelsk where took up physics department of Forestry Institute. Rosing died in exile in 1933 of cerebral haemorrhage.
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