A phosphor is a substance that exhibits the phenomenon of luminescence; it emits light when exposed to some type of radiant energy.

What is the word phosphor means?

1 : a phosphorescent substance. 2 : a luminescent substance that emits light when excited by radiation (such as electrons) and is used especially in fluorescent lamps and cathode-ray tubes.

What is an example of phosphor?

Copper doped zinc sulfide (ZnS:Cu) is the most common phosphor used and yields blue-green light. Copper and magnesium doped zinc sulfide (ZnS:Cu,Mg) yields yellow-orange light. Tritium is also used as a source of radiation in various products utilizing tritium illumination.

What is a phosphor material?

phosphor, solid material that emits light, or luminesces, when exposed to radiation such as ultraviolet light or an electron beam. Hundreds of thousands of phosphors have been synthesized, each one having its own characteristic colour of emission and period of time during which light is emitted after excitation ceases.

How does a phosphor work?

A phosphor is a substance that radiates visible light after being energized. ... In a TV screen, an electron beam strikes the phosphor to energize it (see How Television Works for details). In a fluorescent light, ultraviolet light energizes the phosphor. In both cases, what we see is visible light.

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37 related questions found

What does a phosphor screen detect?

As a manufacturer of image intensifiers and low light cameras, PROXITRONIC also offers phosphor screens which allow the two-dimensional, visual detection of electrons, charged particles, x-rays and UV-radiation.

What is the main function of phosphor in the fluorescent?

The phosphor is responsible for nearly all the visible light produced by the lamp with the visible mercury lines contributing only a few percent to the total lamp light output. This article reviews fluorescent lamp phosphors that are used in general purpose illumination.

Where does phosphor come from?

Phosphorus can be found in foods (organic phosphorus) and is naturally found in protein-rich foods such as meats, poultry, fish, nuts, beans and dairy products. Phosphorus found in animal foods is absorbed more easily than phosphorus found in plant foods.

How do you get phosphor?

Phosphor is a bird heavily reminiscent of a phoenix and has special powers Fenyx can use. Fenyx can obtain Phosphor by completing the sidequest Bolt from the Blue. Phosphor has 17 skins that can be collected and equipped to grant Fenyx perks.

How do you make phosphor?

Mix two tablespoons of finely-powdered charcoal and two tablespoons of powdered cinnamon into the urine and stir. Pour the urine/charcoal dust and cinnamon mixture into a glass retort with a glass tube leading into a second beaker filled with plain water. Heat the retort containing the urine mixture using your torch.

What is a phosphor TV?

The phosphor screen emites photons if accelerated electrons hit the material. The most common use of phosphor screens are cathode ray tube displays which are used in the early TV's and oscilloscopes. Phosphors for these cathode ray tubes were standardized and designated by the letter "P" followed by a number.

What is a phosphor in fluorescent lamps?

The inner lining of fluorescent tubes are coated with phosphors, which absorb the ultraviolet light from electrically charged mercury vapor and re-emit visible light based on a mixt of blue, green and red emitters. ... The blue phosphor in current use is already low in rare-earth elements.

Are phosphors toxic?

Phosphor is a chemically engineered powder that comes from various natural elements. It is not toxic and does not contain mercury. Phosphor does not contain the element phosphorus.

What are the rare earth phosphors?

Phosphors are often transition-metal compounds or rare-earth compounds of various types. The most common uses of phosphors are in CRT displays and fluorescent lights. Rare Earth Phosphorus is segmented into –white, red, green, blue, yellow.

Why do phosphors glow?

Phosphors can radiate light after they have gotten energy from the sun or another source of bright light. The phosphors soak up the energy from the light, and then they radiate this energy as light. ... Phosphorescence is the kind of luminescence that uses phosphors to make something glow in the dark.

What is fluorescence and phosphorescence?

Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. ... Phosphorescence is a specific type of photoluminescence related to fluorescence. Unlike fluorescence, a phosphorescent material does not immediately re-emit the radiation it absorbs.

What is phosphor the lovebird?

Phosphor the Lovebird is another skin gained by killing a legendary monster, this time you need to defeat Slayer Of Adonis, The Legendary Boar, which can be found in the Valley of Eternal Spring right next to the Myth Fresco Challenge. This skin adds +150% stun with Phosphor's Attack.

Which is the best phosphor Fenyx?

The Phosphor the Lovebird skin is the best Phosphor-related item in the game. This Phosphor skin can be acquired by defeating the legendary boar, which can be found in the Valley of the Eternal Springs.

Where is the seed of the dead Fenyx?

It'll be located on top of a mountain. As you approach the bird, a cutscene will trigger. You'll then need to head north into the Gates of Tartaros area to find the Seed of the Dead. When you reach the objective, grab the seed then return to the fallen bird.

What causes high phosphate levels in blood?

High phosphate levels may be caused by: Some tumors such as lymphoma. Kidney disease, underactive parathyroid glands (hypoparathyroidism), acromegaly, healing fractures, untreated diabetic ketoacidosis, or certain bone diseases. Too much vitamin D in the body.

Is phosphorus bad for kidneys?

Too much phosphorus may calcify the kidneys. “As more phosphate goes through the kidney, it accelerates micro-calcification of the kidney's tubules,” Block explains. That can depress kidney function and also increase the risk of fatal heart attacks.

How much phosphorus should I eat on a renal diet?

Nutritionists recommend that healthy adults with normal kidney function get between 700 mg and 1,200 mg of phosphorus each day.

Which is better fluorescent or LED?

LED tube lighting is the better choice because it lasts about 40,000 hours longer in testing, is more energy efficient, will save you more money, and will leave less impact on the environment.

Why is my fluorescent light flickering?

If your fluorescent bulbs flicker, most likely the problem is with the bulb itself. If the bulb is very dark on either end, it may be defective and burned out. The best way to test the functionality of a bulb is to put it into a fixture you know works. ... Flickering fluorescent lights can also be a result of temperature.

How does a fluro light work?

Fluorescent lamps work by ionizing mercury vapor in a glass tube. This causes electrons in the gas to emit photons at UV frequencies. The UV light is converted into standard visible light using a phosphor coating on the inside of the tube.