Cathode Ray Tube
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https://en.m.wikipedia.org/wiki/Cathode-ray_tube
Ориентировочное время чтения: 8 мин
A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, the beams of which are manipulated to display images on a phosphorescent screen. The images may represent electrical waveforms (oscilloscope), pictures (television set, computer monitor), radartargets, or other phenomena. A CRT on a television set is commonly called a picture tube. CRTs have also be…
A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, the beams of which are manipulated to display images on a phosphorescent screen. The images may represent electrical waveforms (oscilloscope), pictures (television set, computer monitor), radar targets, or other phenomena. A CRT on a television set is commonly called a picture tube. CRTs have also been used as memory devices, in which case the screen is not intended to be visible to an observer.
In television sets and computer monitors, the entire front area of the tube is scanned repeatedly and systematically in a fixed pattern called a raster. In color devices, an image is produced by controlling the intensity of each of three electron beams, one for each additive primary color (red, green, and blue) with a video signal as a reference. In modern CRT monitors and televisions the beams are bent by magnetic deflection, using a deflection yoke. Electrostatic deflection is commonly used in oscilloscopes.
A CRT is a glass envelope which is deep (i.e., long from front screen face to rear end), heavy, and fragile. The interior is evacuated to approximately 0.01 pascals (9.9×10 atm) to 133 nanopascals (1.31×10 atm), to facilitate the free flight of electrons from the gun(s) to the tube's face without scattering due to collisions with air molecules. As such, handling a CRT carries the risk of violent implosion that can hurl glass at great velocity. The face is typically made of thick lead glass or special barium-strontium glass to be shatter-resistant and to block most X-ray emissions. CRTs make up most of the weight of CRT TVs and computer monitors.
Since the late 2000s, CRTs have been superseded by flat-panel display technologies such as LCD, plasma display, and OLED displays which are cheaper to manufacture and run, as well as significantly lighter and less bulky. Flat-panel displays can also be made in very large sizes whereas 40 in (100 cm) to 45 in (110 cm) was about the largest size of a CRT.
A CRT works by electrically heating a tungsten coil which in turn heats a cathode in the rear of the CRT, causing it to emit electrons which are modulated and focused by electrodes. The electrons are steered by deflection coils or plates, and an anode accelerates them towards the phosphor-coated screen, which generates light when hit by the electrons.
Before the invention of the integrated circuit, CRTs were thought of as the most complicated consumer electronics product.
https://m.youtube.com/watch?v=4QAzu6fe8rE
Перевести · 05.05.2010 · Cathode Ray TubeThe Cathode Ray Tube (CRT) …
Cathode Ray Tube (Electron Accelerator)
Cathode Ray Tube Experiment and Charge To Mass Ratio of an Electron
YouTube › The Organic Chemistry Tutor
Перевести · Cathode Ray Tube is a not for profit publication primarily for review, research and comment. In the use of images and materials no infringement of the copyright held by their respective owners is intended. If you wish to quote material from this site please seek the author's permission. Cathode Ray Tube …
https://www.sciencefacts.net/cathode-ray-tube-crt.html
Перевести · 03.07.2020 · Cathode Ray Tube Definition. A cathode ray tube or CRT is a device that produces cathode rays in a vacuum tube and accelerates them through a magnetic and electric field to strike on a fluorescent screen to form images. Cathode Ray Tube.
Кинеско́п (от др.-греч. κινέω «двигаю» + σκοπέω «смотрю»), также электро́нно-лучева́я тру́бка (ЭЛТ) — электронно-лучевой прибор, преобразующий электрические сигналы в световые. Широко применялся в телевизорах и мониторах: до середины 1990-х годов использовались устройства исключительно на основе кинескопа.
https://www.britannica.com/technology/cathode-ray-tube
Перевести · 24.07.2021 · Cathode-ray tube (CRT), Vacuum tube that produces images when its phosphorescent surface is struck by electron beams. CRTs can be monochrome (using one electron gun) or colour (typically using three electron guns to produce red, green, and blue images that, when combined, render a multicolour
https://m.youtube.com/watch?v=GzMh4q-2HjM
Перевести · 07.04.2012 · This is the official Video of Cathode Ray Tube by sir JJ Thomson..A Cathode ray tube is the …
What are the images in a cathode ray tube?
What are the images in a cathode ray tube?
A cathode-ray tube ( CRT) is a vacuum tube containing one or more electron guns, the beams of which are manipulated to display images on a phosphorescent screen. The images may represent electrical waveforms ( oscilloscope ), pictures ( television set, computer monitor ), radar targets, or other phenomena.
en.m.wikipedia.org/wiki/Cathode-ray_tube
Who was the first person to use the cathode ray tube?
Who was the first person to use the cathode ray tube?
The apparatus of his experiment is called the cathode-ray tube (CRT). J. J. Thomson was not the only one working on cathode rays, but several other players like Julius Plücker, Johann Wilhelm Hittorf, William Crookes, Philipp Lenard had contributed or were busy studying it. However, Thomson's contributions remain more significant than the rest.
chemistrygod.com/cathode-ray-tube-experi…
How does the electron move in a cathode ray tube?
How does the electron move in a cathode ray tube?
The one pair of plate moves the beam upward and the second pair of plate moves the beam from one side to another. The horizontal and vertical movement of the electron are independent of each other, and hence the electron beam positioned anywhere on the screen.
circuitglobe.com/cathode-ray-tube-crt.html
What did Thomson do with the cathode ray tube?
What did Thomson do with the cathode ray tube?
Thomson’s First CRT Experiment. Thomson took a cathode ray tube and at the place where the electron beam was supposed to strike, he positioned a pair of metal cylinders having slits on them. The pair, in turn, was connected to an electrometer, a device for catching and measuring electric charges.
www.sciencefacts.net/cathode-ray-tube-crt…
https://circuitglobe.com/cathode-ray-tube-crt.html
Перевести · Cathode Ray Tube (CRT) Definition: The CRT is a display screen which produces images in the form of the video signal. It is a type of vacuum tube which displays images when the electron beam through electron guns are strik es on the phosphorescent surface.
https://chemistrygod.com/cathode-ray-tube-experiments
#Cathode Ray and Cathode-Ray Tube
#Thomson's Experiments
#Thomson's Hypotheses
Before directly jumping Thomson's findings, let us understand some basic knowledge on cathode rays and the cathode-ray tube. What are cathode rays? Cathode rays are streams of electrons emitted from the cathode (the electrode connected to the negative terminal of a battery). These rays travel in straight lines and can be deflected by electric and magnetic field. The cathode-ray tube (CRT) is a hollow glass tube. The air …
https://en.m.wikipedia.org/wiki/Cathode_ray
Ориентировочное время чтения: 9 мин
Cathode rays (electron beam or e-beam) are streams of electrons observed in discharge tubes. If an evacuated glass tube is equipped with two electrodes and a voltage is applied, glass behind the positive electrode is observed to glow, due to electrons emitted from the cathode (the electrode connected to the negative terminal of the voltage supply). They were first observed in 1869 by German physicist Julius Plücker and Johann Wilhelm Hittorf, and were named in 1876 by Eugen GoldsteinKathodenstrahlen, or cathode rays. In 1897, …
Cathode rays (electron beam or e-beam) are streams of electrons observed in discharge tubes. If an evacuated glass tube is equipped with two electrodes and a voltage is applied, glass behind the positive electrode is observed to glow, due to electrons emitted from the cathode (the electrode connected to the negative terminal of the voltage supply). They were first observed in 1869 by German physicist Julius Plücker and Johann Wilhelm Hittorf, and were named in 1876 by Eugen Goldstein Kathodenstrahlen, or cathode rays. In 1897, British physicist J. J. Thomson showed that cathode rays were composed of a previously unknown negatively charged particle, which was later named the electron. Cathode-ray tubes (CRTs) use a focused beam of electrons deflected by electric or magnetic fields to render an image on a screen.
www.autex.spb.su/download/wavelet/books/sensor/CH91.PDF
The cathode ray tube (CRT) is unequaled in its ability to produce dynamic, quality, high-information-content imagery at high resolution. Even more impressive is that it achieves this for a lower cost per pixel than any …
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