Tungsten filament lamp diagram
What is a tungsten filament lamp?
A tungsten filament lamp is essentially a device for converting electrical input energy into an output of radiant energy in the form of light and heat. This radiated output is in a continuous spectrum between 300 and approximately 3000 nanometres, with a gradual transition from one wavelength region to another.
How does tungsten filament lamp work?
In an incandescent type of bulb, an electric current is passed through a thin metal filament, heating the filament until it glows and produces light. … After the electricity has made its way through the tungsten filament, it goes down another wire and out of the bulb via the metal portion at the side of the socket.
How does a tungsten filament emit light?
The typical incandescent light bulb contains a thin wire (usually tungsten) called a filament that has a high electrical resistance. This filament gets very hot when an electric current passes through it. The intense temperature makes the filament glow brightly.
What temperature is tungsten light?
For tungsten (wolfram) filament light, the working color temperature is around 3000° K, and more than three-quarters of the energy is radiated in the infrared region in the form of heat.
What is the difference between tungsten and fluorescent lighting?
This page on Tungsten Filament Lamp vs Fluorescent Tube mentions difference between Tungsten Filament Lamp and Fluorescent Tube….
| Tungsten Filament Lamp | Fluorescent Tube |
|---|---|
| Brightness is more. | It's light is cool and pleasant. |
| Light output is reduced with time. | It also reduces but very less. |
What is the working temperature of filament lamp?
The tungsten filament lamp temperature is about 2800–3300 K and consists of a linear double-ended quartz tube containing a tungsten filament, which is resistively heated.
How is the discharge lamp produces light?
Gas-discharge lamps are a family of artificial light sources that emit light by sending an electrical discharge through an ionised gas, i.e. plasma. Typically, such lamps are filled with a noble gas (argon, neon, krypton and xenon) or a mixture of these gases.