Who is the inventor of TV?

Question 1: Who invented television? 20-minute TV was invented by Philo? Farnsworth, Villatimir? Sforokin and Baird invented television independently, but there are differences between them. Baird (his full name is John? Logie? Baird's TV is a mechanical scanning TV, Ferro? Farnsworth and Villatimir? Sforokin's TV is electronic TV. People usually refer to1925101October 2, John, Scotland? Logie? In an experiment in London, John Logie Baird "scanned" the image of a puppet. As a symbol of the birth of television, he was called "the father of television". However, this view is controversial. Because, also in that year, Russia's Vladimir? Vladimir zworykin (he showed his TV system to his boss in Westinghouse) and 1927 Luo Fei? Farnsworth also invented television alone.

Although the time is the same, John? Logie? John Logie Baird and Villatimir? Vladimir zworykin and Ferro? The TV system in farnsworth is very different. Will John go down in history? Logie? John Logie Baird's TV system is called mechanical TV, while Villati is called the Mill? Sforokin and Ferro? The television system in farnsworth is called electronic television. This difference is mainly due to the different transmission and reception principles.

The first TV set appeared in 1924, by British electronic engineer John? Baird invented that by 1928, American RCA TV station took the lead in broadcasting the first TV movie Felix Tekaat. Since then, television has changed human life, information dissemination and way of thinking. Since then, mankind has begun to step into the television era. From black and white to color, from analog to digital, from sphere to plane.

Question 2: Who invented television? In the 1920s, British Baird invented television.

Question 3: Who invented television? Inventor: John Locke Baird (Scotland)

Year: 1926 10.02.

Venue: An attic in London, England

Baird invented TV without big gongs and drums. He only built a camera in his makeshift laboratory, which can scan the object with spotlight, convert the light and shadow of the scanned object into current with lamp tube, and project the original object onto the screen. Until 1926 and 10 in June, he successfully scanned a puppet head, so he found a child named William Tynton as a model. This is ... At that time, the screen color was pink (that is, black and white TV), and the picture was divided into 30 lines. The image flickered and the audience felt sick and headache after watching it.

The birth of color TV: 1953 color TV was officially listed in the United States. The first TV program was broadcast by ABC on April 30th, 1939. The content is President Roosevelt's opening speech at the new york World Expo.

The story of TV

television

Television is recognized by the world as one of the greatest inventions of the twentieth century.

history

Television was not invented by anyone. She is the crystallization of a large group of people in different historical periods and different countries. As early as the19th century, people began to discuss and explore ways to convert images into electronic signals. 1900 The word "TV" appeared.

People usually refer to1925101October 2, John, Scotland? Logie? In an experiment in London, John Logie Baird "scanned" the image of a puppet. As a symbol of the birth of television, he was called "the father of television". However, this view is controversial. Because, also in that year, American vladimir zworykin showed his TV system to his boss in Westinghouse.

Although the time is the same, John? Logie? The TV systems in John Logie Baird and vladimir zworykin are very different. Will John go down in history? Logie? John Logie Baird's TV system is called mechanical TV, while Sforokin's system is called electronic TV. This difference is mainly due to the different transmission and reception principles.

The development of television is complicated. Almost at the same time, many people are doing the same research. In order to clarify history concisely.

We can divide the history of television into the following four parts:

Mechanical television

Electronic TV

colour television

Radio and television

For more details, please refer to the history of television.

at present

Now, television is undergoing a revolution.

Present situation of TV technology: One of the most obvious characteristics of TV technology is digitalization. The first is the digitization of program production. In the late 1990s, the British Broadcasting Corporation (BBC) took the lead in establishing the Columbus system in the world. The system makes the storage, editing and playing of BBC TV programs fully digital, that is, without tape, thus greatly improving the work efficiency of BBC and saving the production cost. In addition, the traditional analog cameras and video tapes are gradually being eliminated by the current television institutions, replaced by digital cameras and various emerging record carriers. This change has greatly improved the image quality. Secondly, the transmission technology is also diversified. In addition to the traditional wireless microwave transmission, there are now cable TV, satellite TV and other transmission methods. These new transmission modes effectively reduce the inevitable attenuation of signals during transmission and ensure better reception quality. Finally, the digital transformation of receiving technology (please see the next point: the status quo of TV sets). The improvement of sound quality and image quality and two-way interaction are the two biggest benefits brought by the wide popularization of digitalization.

The present situation of television. The TV set used by most people today is not much smaller than it was ten years ago. Because CRT technology is still the most commonly used display technology. The biggest disadvantage of this technology is that the size of the screen is proportional to the volume. And 34 inches is the maximum limit that this technology can reach. This obviously runs counter to people's needs. Therefore, more display technologies have emerged. Such as rear projection TV, LCD TV, plasma TV, etc. At the same time, with the digitalization of TV production and transmission technology, the digitalization of receiving equipment has become inevitable. Digital TV has better display effect and more functions, and can even realize ... >; & gt

Question 4: Who invented television? The inventor of television-Baird.

/kloc-one day in 0/929, when the British first saw the TV picture, they were all in high spirits and rushed to tell each other. Among them, TV inventor Baird (1888 ――1946) shed tears with excitement.

Born in England, Baird was sickly since childhood, and was almost killed by illness many times. However, his physical weakness tempered his courage and perseverance to overcome difficulties. After graduating from college, he worked in an electrical company. He was meticulous in his work and repaired several machines that were almost eliminated in a short time, which was highly valued by the company.

Ruthless illness pestered him, and he had to resign to recuperate. 1923 one day, a friend told him, "Since Marconi can transmit and receive radio waves from a long distance, he should be able to transmit images." This greatly encouraged him. Baird is determined to complete the task of "transmitting images by electricity". He sold a little of his property, collected a lot of information and devoted all his time to the development of TV sets. Finally, he finished the design of the TV set.

It is not easy to turn the design into a physical prototype. A small room is both a bedroom and a studio Although the disease tormented him, he still worked doggedly, often fighting day and night, eating bread when he was hungry, sleeping with clothes for a while when he was sleepy, and replacing it with old tea boxes, old caps and knitting needles when he had no money to buy experimental equipment.

After a long period of hard struggle and numerous failures, Baird finally put the image of people on the screen with electrical signals. 1929, the BBC allowed Baird to provide public television broadcasting services. After 1930s, Baird turned to the research of color TV and achieved some results.

Question 5: Who is the inventor of television? Inventor:

1924, British Baird invented the most primitive TV set, which transmitted images by telex.

American RCA 1939 introduced the world's first black-and-white TV set. By 1953, the national color TV standard was formulated, and RCA color TV was introduced in 1954.

Question 6: Who invented television? The history of the invention of television can be traced back to19th century. 1862, Italian priest Cassel created a method of transmitting images by telegraph line in France. 1873, British electrical engineer Smith discovered the photoelectric effect. 1884, the German Bunikov invented the mechanical scanning TV and registered the patent. 1904, an Englishman named Bakewell invented the TV fax technology to send one photo at a time, but it took 10 minutes to send each photo. 1908, the Englishman Bidwell wrote a letter to Nature magazine. When talking about TV, he thinks that to get a good image, thousands of photovoltaic cells should be connected in the transmitter, and each cell is connected to the corresponding point of the receiver through a separate line. 1925 10 10 On February 2nd, the British inventor Baird finally made the world's first TV set with practical value on the basis of previous research. The following year, on June 27th, 65438 10, Baird first showed people the machine that can play movies by radio. It is called TV because it displays images electronically in a negative vacuum tube. This kind of TV with strange appearance and unclear image can only transmit 30 pictures per second, but its birth has opened a new chapter in the development of TV, which is one of the iconic inventions in the 20th century.

Although an article in American News and World Report entitled "The Father of Television-The Forgotten Farmer's Page" introduced, 192765438+ 10, farnsworth was the first to file a patent application, and on September 7th, he transmitted the first electronic TV image in history. However, Baird made the greatest contribution from the invention and application of television. 193 1 year, Baird was invited to the United States to help two television stations in new york establish informal television broadcasts. 1935, Baird and Fonseca set up the first TV station in Berlin. On April 30th, 1939, ABC transmitted President Roosevelt's opening speech at the World Expo and the TV program led by Mayor new york through the transmitter on the top of the Empire State Building. Thousands of people flocked to Manhattan department stores to watch this new scene.

/kloc-in the autumn of 0/946, a 25cm black-and-white TV set with a price of $375 went on sale. This is a Russian-American. ZhuoErJin trial-produced successfully. Since then, television has entered the family, greatly changing people's way of life. For decades, TV technology has developed rapidly, and black-and-white TV sets are disappearing from big cities. Color TV sets, stereoscopic TV sets, digital TV sets and high-definition TV sets are entering thousands of households, and people have lived in a "TV era". Forty-six of the 576 TV stations in the United States/kloc-0 officially broadcast digital TV programs in Los Angeles and other big cities 13 from June 1 day, and 23 of them started broadcasting digital TV programs from June1day. Experts believe that this marks the beginning of a new "TV era", and its influence will go beyond the TV industry itself.

1940, the electromechanical color TV system was developed in Gullmar, USA. 1949 12 17, which has been put into use. The first article is located in London and Sutton, England. TV cable between Colfield. 195 1 year, h? Law invented the three-gun shadow mask color kinescope, and Lawrence invented the single-gun color kinescope.

Question 7: Who invented the first TV in the world and found you one?

The development of TV sets

At the end of 19, a few pioneers began to study and design the technology of transmitting images.

The first mechanical TV in the world

1880, Frenchman Leiblang proposed that a mirror should vibrate on two different axes at different speeds to form a linear scan back and forth, thus decomposing and reproducing the image.

1883, the German Pukov proposed the disk scanning method.

1897, Braun, Germany invented the cathode ray tube, which displays rapidly changing electrical signals;

1904, an Englishman, belleville, and a German, Kelon, invented a TV fax technology, which faxed one photo at a time, and each photo took 10 minutes.

Electron tube television

1923, Russian-American scientist Zworykin applied for the patent of photoelectric picture tube, TV transmitter and TV receiver. He adopted a comprehensive "electronic TV" transmitting and receiving system for the first time and became a pioneer of modern TV technology. With the application of electronic technology in TV, TV began to go out of the laboratory and enter the public life.

From 65438 to 0924, British and German scientists successfully transmitted still images by mechanical scanning almost simultaneously. However, the transmission distance and range of cable mechanical TV are very limited, and the image is quite rough.

Images in TV sets

1925, Baird of Scotland publicly demonstrated a machine he made, which successfully transmitted human facial activities with a resolution of 30 lines and a repetition rate of 5 frames per second. Since then, television has begun its magical development.

1928, 3 1 radio stations in new york, USA conducted the first television broadcasting experiment in the world. Because CRT technology has not completely passed the test, the whole experiment only lasted for 30 minutes, and only a dozen TV sets were watched. This announced the emergence of TV art as a social undertaking and an epoch-making event in the history of TV development.

From 65438 to 0929, American scientist eves played 50 lines of color TV images between new york and Washington, and invented color TV.

1933, Zworykin successfully developed camera tubes and picture tubes for TV camera shooting. The process of making TV camera and imaging completely electronic has been completed, and so far, the modern TV system has basically taken shape. Today, the imaging principle and equipment of TV cameras and TV receivers are improved according to his invention.

1935, Baird established the first TV station in cooperation with a German company, broadcasting programs three times a week. 1936; Britain broadcast the clearest public television program in the world at that time;

1939, the United States broadcasts fixed TV programs. Since then, people's lives have had a profound and complicated connection with television. 1938, the German Fletcher Siegel put forward the idea of three guns and three beams color kinescope. 1949, the United States first developed the world's first three-gun three-beam color picture tube; 1957, an all-glass color picture tube was developed. 1964, a rectangular picture tube with full glass shell was developed; 1969 A kinescope with black background was developed, and the brightness was doubled. 1968, Sony Corporation of Japan developed a three-color display tube with one gun; 1972, the United States successfully developed a color display tube with automatic convergence error correction. At this point, the development of color TV has entered a mature stage.

With the rapid development of modern science and technology, the development trend of modern TV technology will have the following ten characteristics:

1. polarization. The first is miniaturization. The microcomputer screen size of LCD is 3.8 cm to 3.9 cm, and the microcomputer screen size developed by cathode ray tube is below 14 cm. The second is large-scale. Such as wall-mounted thin flat panel TV, cathode ray imaging big screen TV, projection big screen TV, etc.

2. Decoration. With its exquisite modeling and decoration, TV will become a beautiful decoration in room layout, which can replace murals or mirror cabinets.

3. Digitization. Television sets that convert analog signals into discrete digital signals with digital integrated circuits have emerged.

4. Serialization. It is a technical means to strengthen quality management, improve labor productivity, ensure product quality and facilitate after-sales service in design work.

5. high definition. The 625 scanning line of the original TV screen will be increased to 1250, and the picture quality can be improved by 100%.

6. Stereophonization. The TV set has two-channel sound effects, and the sound quality can be comparable to that of CD.

7. Multi-channel. You can receive more than 10 or even hundreds of TV programs.

8. Satellization. Television programs transmitted by several, dozens or even global satellites can be received through the antenna of outdoor special devices.

9. Sunshine vision. After improving the color filter and display screen, the TV can still receive very bright TV images even in the daytime or under the sun.

10. New materials ... >>

Question 8: Who was the inventor of television? Baird, doctor of law.

John Logie Baird (1888~ 1946)

British engineer and inventor of mechanical scanning television. 1888 was born in hollins, Scotland on August 3rd, and 1946 died in Baker Hill, near the sea on June 4th. He studied at Glasgow University and dropped out of school because of the outbreak of the First World War. 1922, Baird used biscuit barrel, lens, potassium photocell, toy motor, NiPukov disk (see P.G. NiPukov) to compose TV transmitting equipment and receiving equipment for experiment. 1924 Baird has realized the short-distance image transmission of several meters. 1925 65438+1On October 27th, he demonstrated the equipment at the British Institute for Science in London, and conducted public experiments on launching and receiving. 1927, images were transmitted between London and Glasgow, which are hundreds of kilometers apart. 1928, the experiment of TV transmission and reception was successfully carried out between London and new york. 1929, the BBC began the trial broadcast of mechanical TV. Since then, Baird has also studied color TV, daylight TV, stereo TV and big screen TV.

Question 9: Who invented television? The inventor of television is Baird. 1923 One day, a friend told Baird, "Since Marconi can transmit and receive radio waves from a long distance, he should be able to transmit images." This greatly encouraged him. Baird is determined to complete the task of "transmitting images by electricity". He sold his little property, collected a lot of information and devoted all his time to the development of TV sets. 1925 10 February 2nd is the most exciting day in Baird's life. On this day, he installed a new device that can convert light into electrical signals in his room, hoping to use it to make Bill's face more realistic. Thousands, he pressed the button on the plane, and suddenly Bill's image appeared clearly and vividly. He couldn't believe his eyes. He rubbed his eyes and looked at it carefully. Isn't that bill's face The light on that face is distinct and distinct, and the nuances are clearly discernible. Mouth, nose, eyes, eyelashes, ears and hair are all clear. Baird jumped with excitement. The only thing on his mind is to find a job, Bill, and make a face. There is a movie rental shop under Baird Building. This afternoon, the business in the store continued. Suddenly, the inventor upstairs "broke in and caught the first person." The man arrested is William, the shop boy who is only 15 years old. Tynton. A few minutes later, Bei Le saw William in the magic mirror? Tennington's face-this is the first face shown on TV. Then William was allowed to look at the receiver and saw Baird's own face reflected on the screen. The experiment succeeded! Then Baird invited researchers from the Royal Academy of Sciences to watch his new invention. 192665438+1On October 26th, researchers from Chinese Academy of Sciences were invited to visit Baird Laboratory. The screening result was very successful and caused a great sensation. This is the first day of Baird's TV broadcast, and the whole world regards this day as the day when TV was born. Inventor of TV: Philo T. Farnsworth, a farm boy of 14 years old, plowed the fields in Idaho, rigby. Philo T. Farnsworth's is the electron beam of thought, Einstein's is the theory of relativity. As a science teacher, he realized that Philo had gained unusual wisdom and helped him learn what he could. Just like the attack in his own field, he used electron beams to arrange images, just like he cultivated in the field, one line at a time, from top to bottom, from the side. After studying in Brigham Young University for two years in high school, post-finishing and two years in college, he turned to design his own TV system, including an electronic camera, transmitter, receiver and a screen. Through 1927, he established the components of his own system and successfully showed them to investors. He proposed a patent working system in 1927. The problem is that Vladimir King, an immigrant from Russia, works on the same issue and has patented some of his systems in 1923. However, his equipment didn't work. Gold for Lotus, in the later stage of farnsworth's technological development, Lotus argued that Lotus should not pay royalties to farnsworth based on the application date of Zworkykin. Farnsworth's patent was published in 1930. He used the same annuity to visit the laboratory in farnsworth and heard, "I think I may have invented it." However, Lotus claimed that Kim's photoelectric camera tube was before farnsworth. Both parties filed their priority cases with the US Patent Office in the lawsuit, which is called interference. The evidence that farnsworth excluded the invention of priority clearly shows the earliest concept. However, during World War II, the development of television and television was suspended. As soon as the war ended, farnsworth's patent almost expired. With the invention of telephone in 1875 and the development of broadcast film technology, many scientific and technological personnel began to study image transmission technology, hoping to apply the latest scientific and technological achievements to the photoelectric conversion of static or moving scenes and images and send out electrical signals so that images can be reproduced immediately in other places. British engineer John Logie Baird first invented and realized such a TV system. Baird applied to the British Patent Office on July 26th, 1923 entitled "System for transmitting images, portraits and scenes through wired or radio wave communication", and was authorized on July 9th, 1924 ... >; & gt