In What Lighting Applications Is Tungsten Filament Used?

Tungsten filament once played an important role in lighting applications, especially in traditional incandescent light bulbs. Here are some of the main applications of tungsten filament in lighting:

Incandescent light bulbs: The most typical application is in traditional incandescent light bulbs. In an incandescent light bulb, an electric current is passed through a tungsten filament to heat it, causing it to emit visible light. This is a thermal radiation light source, and the color and brightness of the light are controlled by the temperature of the tungsten filament.

Halogen Lamps: Tungsten filaments are also used in halogen lamps, which are high-brightness, high-efficiency lighting devices. The tungsten filament in a halogen lamp is usually wrapped in a halogen gas, which can extend the life of the tungsten filament because it reduces tungsten evaporation and redeposits it on the filament.

Projectors: Tungsten filament is used in projectors as part of the light bulb. Projectors typically use high-intensity tungsten bulbs to produce bright projections.

Stage Lighting: In stage lighting, especially in traditional theaters and performances, tungsten light bulbs are also used. They provide warm and bright light suitable for stage performances.