The 1st Invention
In 1873 Joseph May a telegraph operator from Valentia, Ireland found the light affectsÂ electric selenium resistance. He realized that can be used to change the light into electric current using a selenium photocell. Joseph May with Willoughby Smith (engineers from Telegraph Construction Company Maintenance) to do some further experiments that are reported in the Journal of the Society of Telegraph Engineers.
After some period of time then ever found a small metal plate that can rotate with holes in it by Paul Julius Gottlieb Nipkow (1860-1940) or better known Paul Nipkow in Berlin, Germany at 1884 and referred to as the embryo of the birth of television. Around 1920 John Logie Baird (1888-1946) and Charles Francis Jenkins (1867 – 1934) using the Paul Nipkow’s disc to create a system in the arrest of a picture, transmission, and receive. They make the whole system is based on the television system mechanical movement, both in broadcasting and receive.
Electronic television rather stagnating development in the early years, the more mechanical television was due to cheaper and more resistant rock. Not only that, but also very difficult to get financial support for research electronic TV when TV mechanics are considered able to work with very well at that time. Until finally Vladimir Kosmo Zworykin (1889-1982) and Philo T. Farnsworth (1906-1971) succeeded to the electronic TV. With the cheap cost of running well and the result, the people at the time it gradually began to leave the TV and replace it with a mechanical electronic TV.
Vladimir Zworykin, who was one of the several specialists at that time, received assistance from the David Sarnoff (1891-1971), Senior Vice President of RCA (Radio Corporation of America). Sarnoff has already devoted much attention to the development of mechanical television, TV and electronic predict the future will have a better commercial. In addition, Philo T. Farnsworth successfully also gets sponsors to support the idea and took to compete with Vladimir.
Farnsworth and Zworykin working separately succeeded in making progress for a TV commercial with a very affordable cost. In 1935, they began to send out broadcast by using a fully electronic system. Their main competitors are Baird Television, which has been first to broadcast since 1928, using a mechanical system entirely. At that time very few people who have a television, and they have a generally high quality pickup. On the TV screen size is only about three to eight inches just so mechanical and electronic competition is not so evident, but the competition is there.
And then RCA and Zworykin ready for a regular TV program, and they demonstrate the large-scale on the World Fair in New York. Enthusiastic people too big for this electronic system, causing the National Television Standards Committee [NTSC] 1941, has decided to make television transmission standard system in the USA. Five months later, 22 TV stations in USA were converting the system into the new electronic standard.
In the first years, when the world economic recession, the price of a television set is very expensive. When prices start going down, the USA involved in world war II. After the war over, television during in the golden period. although at that time only can watch a black and white television.
CBS is actually more the color system used to build a few years before the rival (RCA). However, their system is not compatible with the majority of B/W Televisions around the country. CBS has spent a lot of cost for the color. They should realize the fact that their job ends futile. RCA was learned from CBS’s experience started to build the system according to the color format. They quickly build a system that can color on the color and B/W system. After the RCA exhibit their system capabilities, in 1953 NTSC make it became a standard television color system to commercial broadcast.
And now people are always talking through a digital mobile phone and send e-mail via the computer network of the world, but television technology essentially remain the same. Of course there are some procedures such as the development of stereo sound and color is better, but there is not a big leap to be able to shake that perception on the television. However, everything began to change slowly. Television has gradually entered the digital system.
John Logie Baird giving a description of his first television camera on display at the Science Museum, London.
Vintage RCA 621TS Television 1946 CRT