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Boris Grabovsky
Boris Pavlovich Grabovsky (Борис Павлович Грабовский in Russian) was a Soviet engineer who invented a first fully electronic TV set (video transmitting tube and video receiver) that was demonstrated in 1928.〔(Early Television Foundation )〕 In 1925, one of the pioneers of television Boris Rosing advised and helped him apply for a patent (issued under No 5592) of a fully electronic TV set called Telefot.〔(Boris Grabowski - the inventor of electronic television )〕
In his method patented in 1925, Grabovsky proposed a new principle of the TV imaging based on the vertical and horizontal electron beam sweeping under high voltage that is widely used in the modern cathode-ray tubes. A historian and ethnographer Boris Golender (Борис Голендер in Russian) in his video lecture described in details where and how the inventor Boris Grabovsky demonstrated a first fully electronic TV set to committee and public in summer 1928.〔(Invention of television and Boris Grabovsky (in Russian) )〕 Although this date of demonstration of the fully electronic TV set is the earliest known so far, most of the modern historians claim that either Vladimir Zworykin 〔(Invention of the iconoscope, the first electronic television camera )〕 or Philo Farnsworth 〔K. Krull, The boy who invented TV: The story of Philo Farnsworth, 2014〕 were supposedly first. Contribution made by Boris Grabovsky to the development of early television was acknowledged by the Government of the USSR and in 1964 he was awarded a prestigious degree 'Honorable Inventor of the UzSSR'.
Boris Grabovsky was born on May 26, 1901 in Tobolsk, Siberia, where his father, a prominent Ukrainian poet Pavlo Hrabovsky was living in exile as a member of the Russian revolutionary movement Narodnaya Volya. After the death of his father the next year, the family moved to Odessa then to Kharkov. In 1917, they had to move to Central Asia, to Kyrgyz village Tokmak. He died in January 1966.
Boris Grabovsky started his education in Tashkent special school. Then he entered preparational faculty of Central Asian University in Tashkent where he worked with Prof. G. Popov. In the university he read articles by Boris Rosing in the field of electronic telescopy. Being excited by the idea of the transmission of images over a distance, he invented the cathode commutator, which was the first prototype of his transmitting tube.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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