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A fluorescent bulb uses a completely different method to produce light. There are electrodes at both ends of a fluorescent tube, and a gas containing argon and Mercury vapor is inside the tube. A stream of electrons flows through the gas from one electrode to the other (in a manner similar to the stream of electrons in a cathode ray tube). These electrons bump into the mercury atoms and excite them. As the mercury atoms move from the excited state back to the unexcited state, they give off ultraviolet photons. These photons hit the phosphor coating the inside of the fluorescent tube, and this phosphor creates visible light. It sounds complicated, so lets go through it again in slow motion:
- There is a stream of electrons flowing between the electrodes at both ends of the fluorescent bulb.
- The electrons interact with mercury vapor atoms floating inside the bulb.
- The mercury atoms become excited, and when they return to an unexcited state they release photons of light in the ultraviolet region of the spectrum.
- These ultraviolet photons collide with the phosphor coating the inside of the bulb, and the phosphor creates visible light.
The phosphor fluoresces to produce light.
A fluorescent bulb produces less heat, so it is much more efficient. A fluorescent bulb can produce between 50 and 100 lumens per watt. This makes fluorescent bulbs four to six times more efficient than incandescent bulbs. That's why you can buy a 15-watt fluorescent bulb that produces the same amount of light as a 60-watt incandescent bulb.
What else can I help you with?
Which type of light bulb uses phosphors?
Fluorescent light bulbs use phosphors to convert ultraviolet light into visible light.
Is UV light the same as fluorescent light?
The UV light is different to that of fluorescent light. The UV originates from the sun. The latter one does not.No, it is not. UV is different.
What are natural and man made sources of light?
Natural sources of light include the sun, stars, and lightning. Man-made sources of light include light bulbs, fluorescent lamps, and LED lights.
Function of the phosphor in fluorescent?
The phosphor in a fluorescent light bulb converts ultraviolet light emitted by the mercury vapor into visible light. This process creates the bright, white light that we see when a fluorescent bulb is turned on.
Do incandescent light bulbs have more mercury in them than fluorescent?
I would say no. My reasoning is that if incandescent bulbs have as much or more mercury than fluorescent bulbs, the fluorescent industry would be debunking all the reports of a mercury problem.Incandescent lights do not need or use mercury to operate, so there is none in them.Fluorescent lights cannot be made at all without mercury, as it is the glow of mercury ions that produces the UV light inside the fluorescent bulb to excite the phosphor coating to make visible light.
Who invented fluorescent light bulb?
EEdmund Germer (90% sure) made the first fluorescent light bulb
When was the fluorescent light made?
At the 1939 World's Fair, while technologies that made it possible were being developed many years before, the first fluorescent light that was available for commercial uses was made and displayed to the public in 1939.See also, related links below and, wiki Artcraft Fluorescent Lighting Corporation.
Why does a plasma ball make fluorescent light bulbs light up?
Anything that excites the gas in a fluorescent will make it light. Static electricity from the carpet will cause compact fluorescent to light.
Which state help produce light in fluorescent light bulbs?
Which state helps produce light in fluorescent lightbulbs?
What is the purpose of a fluorescent light starter and how does it contribute to the functioning of a fluorescent light fixture?
A fluorescent light starter is a small device that helps initiate the flow of electricity in a fluorescent light fixture. It contains a small gas discharge tube that helps create the initial spark needed to ionize the gas inside the fluorescent tube. This ionization process allows the electric current to flow through the tube, causing the fluorescent coating to emit light. In summary, the purpose of a fluorescent light starter is to kickstart the flow of electricity in a fluorescent light fixture, enabling it to produce light efficiently.
How does a fluorescent make light?
http://home.howstuffworks.com/fluorescent-lamp.htm
Which type of light bulb uses phosphors?
Fluorescent light bulbs use phosphors to convert ultraviolet light into visible light.
How much energy does an incandescent lightbulb use versus a fluorescent?
Yes that's true fluorescent bulbs are better because it usess 75% less energy and works longer than a incandescent light bulb. Yes...and no. It is true that power usage decreases with fluorescent balb usage. However, one must take into account that they pollute more (i.e. mercury and other heavy metals).
How does a fluorescent bulb convert ultraviolet light into visible light?
A fluorescent bulb contains a gas that emits ultraviolet light when electricity passes through it. The inner coating of the bulb is made of phosphor, which absorbs the ultraviolet light and re-emits it as visible light. This process is known as fluorescence.
Do light bulbs provide fluorescent light?
No it does not
What is the purpose of a fluorescent light ballast and how does it function in the operation of fluorescent lighting systems?
The purpose of a fluorescent light ballast is to regulate the electrical current flowing through the fluorescent light tubes. It provides the initial surge of electricity needed to start the light and then regulates the current to keep the light glowing steadily. The ballast also helps prevent flickering and ensures the longevity of the fluorescent tubes.
How do compact fluorescent lights differ from fluorescent light globes?
Compact fluorescent lights are smaller versions of traditional fluorescent light bulbs that are designed to fit into standard light fixtures. They are more energy-efficient and have a longer lifespan compared to incandescent bulbs. Fluorescent light globes typically refer to the larger, tube-shaped fluorescent bulbs that are commonly used in commercial and industrial settings.
