求英文论文The History of TV~谢

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求英文论文The History of TV~谢
1个回答 分类:英语 2014-10-09

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History Of Television Philo T. Farnsworth invented the Television in 1927. The earlier tries to create the TV were based on the scanning disk. It was patented by Paul Nipkow. From what I have understood it was almost like the children’s tool known as a Light Bright. Farnsworth’s invention had been kick started in 1921 by a boy who decided to mow hay in rows. This gave Farnsworth the idea of scanning a picture in horizontal lines. Farnsworth was not the only man working with this idea as a Russian Vladimir Zworykin had been using this design in a camera. Farnsworth had used an “anode finger- a pencil sized tube with a small aperture at the top” which had made a copy of the picture. Magnetic coils sent electrons left to right in rows onto the aperture, and created an electrical current. Both designs had used a cathode-ray tube, which recreated the image on a fluorescent surface. But Farnsworth had moved faster and applied for the patent in 1927. The TV’s full development had been stretched out due to the poor funding to Farnsworth by RCA. 1934 British Gaumount had paid Farnsworth to use his design and make systems based on it. RCA had followed in 1939. WWII had delayed the TV’s development even more, and by the time WWII was over Farnsworth was no longer involved. Which had led RCA to hire the Russian Zworykin and control television Technology. Farnsworth who now was struggling with financial trouble, starting his own company, and winning lawsuits had found hope. He had made a partner who helped him build a Broadcasting studio. 1939 RCA underwent a 10 million dollar R&D on broadcasting TV. RCA had later announced a launch of commercial TV but failed. Still in 1939 RCA found them self-paying a large sum of patent money to Farnsworth Radio and television. In final the first television broadcast had been made in London 1936.
 
 
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