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Light Bulbs are interesting objects that brighten up our homes, schools, and streets. A key component of a light bulb is the filament. The filament contributes to the production of light. Here a bit more about filament!
It takes electricity to make light from a light bulb. Now, when you flip a switch, electricity flows into the light bulb and through the filament. The filament becomes hot and glows and provides light. This twinkles a little bit from something, called incandescence, he explained — which is what makes light bulbs glow.
Filaments have evolved significantly since the invention of the first light bulb. Previously made from material such as carbon or bamboo, which would quickly burn out. Eventually, scientists created new materials to help filaments last longer and burn brighter. Now, nearly all light bulbs have filaments that use the material tungsten, a strong metal that can withstand high temperatures.
Tungsten filaments are created by coiling or spiraling a fine wire of tungsten. Such shape enables filament to generate additional light while consuming less energy. The coil is placed in a glass bulb with a gas, such as argon, to prevent it from burning out too quickly. When electrical current passes through the filament, it heats up—over 1,000 degrees Celsius! —and glows to make light.
Filaments Usage — as the Technology Improved. Newer types of bulbs, such as halogen and LED lights, use even less electricity to produce the same amount of light. That means we can light up our world at a lower cost and with less power out of our pocketbooks. Sunfeng is striving to manufacture energy-efficient lighting that benefits the Earth and also our wallets.
The tale of filaments is one that is inextricably bound to the way that lighting technology has evolved. From Thomas Edison’s earliest light bulb to modern LED lights, filaments have been essential to producing light. Whether filaments last longer, work better and shine brighter is a result of hard work by scientists and engineers. These have evolved into the various types of light bulbs we have today.
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