No, not in the filament. You are probably thinking of compact fluorescent light bulbs, which do contain Mercury.
Domestic light bulbs are simply the light bulbs (usually of the filament type) used in the home.
Tungsten
Tungsten
Usually tungsten.
Tungsten is an element. It is used in bulbs
parallel
Generally, tungsten.
Light is not used in light bulbs; light is created in light bulbs. From Edison to the invention of solid state devices, light bulbs were mostly incandescent. They made light by running electricity through a tungsten filament inside a glass bulb with the air removed. The filament got very very hot and emitted light waves (photons). The lack of air (oxygen) preserved the filament from burning up. The efficiency was atrocious, but they made light.
Light bulb filaments are usually made of tungsten, which has a very high melting point. Occasionally carbon is used as a filament.
Neon and argon are used in the light bulbs. Neon makes those flashy lights and argon prevents the tungsten filament from burning.
Argon. As an inert gas, it makes the filament last longer. Some light bulbs also use Krypton.
tungsten