Baird is a representative figure who advocates the development of TV with mechanical scanning. 1928 developed the first color TV set. 1930, his system began to pilot audio TV programs, which made people immersive and made the old fable that "a scholar can know what's going on in the world without going out" come true. Therefore, Baird is called "the father of television". He died in 1946.
If the television field was once Baird's world in the 1920s and 1930s, then in the 1930s, he met his strong rival Philo Farnsworth.
As early as the 1920s, when Baird was addicted to mechanical manufacturing methods, at 192 1, there was a 14-year-old boy who was planting potato fields in his hometown. He was absorbed in a difficult problem: how to design a novel radio so that it could transmit moving pictures and sounds together?
Farnsworth read all the information he could find about the achievements of "mechanical television" and conceived a completely different method. He envisioned dividing the observation screen into many strips, just like the furrow when plowing the land, and letting the current form black and white areas along each point of the strip. When these strips are closely stacked together, he thinks they can "draw" an image, just like the geometric figures that farmers sometimes plan on the pastures they cultivate. Surprisingly, it turns out that this device is much better than what experts have done; In fact, this kind of equipment has not lost its use value so far.
Farnsworth was born in August 1906 in a farmhouse in Utah, USA. Farnsworth showed signs of early wisdom when he was young. He has photographic memory and natural understanding of any mechanical device he has ever seen.
Farnsworth's parents are constantly moving to find an ideal place to live. When they settled in Idaho, 1 1 year-old Ferro was ecstatic when he learned that his new home had power transmission lines. He found bundles of old magazines of science and technology in the attic of his home, began to teach himself and decided to become an inventor.
Farnsworth began to seriously consider developing television. He almost instinctively realized that it was not feasible to transmit images by mechanical devices. The young man also has an intuition that the research in the field of physics, which makes him feel novel, may hold the answer to this question. In any case, electrons can move at a speed unmatched by mechanical equipment, which makes the image clearer and means there is no need for moving parts. He reasoned that if a picture can be converted into an electron flow, it can spread in space like a radio wave, and finally it can be recombined into an image by a receiver. This is a fairly simple idea in essence, but no one seems to have thought of such a simple idea.
The school represented by American scientist farnsworth, unlike Baird, insists that only newly invented electronic equipment, photovoltaic cells and cathode ray tubes can succeed. He successfully used electronic technology to transmit images in 1927, and invented the electronic image decomposition camera in 1928. Farnsworth TV Co., Ltd. was established on 1929. 1937, his electronic TV system successfully defeated Baird, and Baird's mechanical scanning TV device was eliminated, thus determining the monopoly position of electronic TV system. At this time, the real modern TV was born.
When the US Patent Office finally decided to make farnsworth the holder of all major TV patents, it was the end of 1930s, which was too late for farnsworth, and his funds were almost exhausted. With the approach of World War II, the federal government soon announced that it would suspend the development of the television industry. In this way, it will have to be postponed to 1946, so that TV production can legally start. By that time, farnsworth's patent has exceeded the protection period.
After hard work, farnsworth invented television, but he got nothing in personal income. 1July, 969, farnsworth and his wife, Alma, who were nearly ancient and old, were watching TV at their home in Maine, and the screen was showing the first step taken by human beings on the surface of the moon. He said quietly to his wife, "You know, today is all worthwhile."
Not long after, Philo farnsworth contracted pneumonia and died in June 197 1. The New York Times called him one of the greatest and most charming inventors in the world in his obituary.
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