Incandescent Light
Incandescent light is a form of electric illumination that utilizes extreme heat to produce artificial light. This type of light bulb has been widely used for over a century to light homes and entire cities. There are different types of incandescent lights, and each differs in the amount of energy required and the radiance emitted.
Component of Incandescent Light
A standard incandescent light bulb consists of various components that enable its operation. When the power switch in a room is turned on, an electric current flows inside the bulb and passes through the thin wire filament. This filament, often made of tungsten, a metal resistant to high temperatures, produces bright illumination. The filament is typically enclosed in a thin glass bulb that prevents oxygen from entering and protects the tungsten.
Manufacture of Incandescent Light
Modifications can be made to incandescent light for specific purposes. Manufacturers sometimes consult the color spectrum to apply different tints to bulbs. Most standard lamps emit clear light, often appearing yellow and not evenly illuminating an entire room. To address this issue, the interior of some bulbs is coated with a blue and green diffusion layer, brightening the light and allowing it to illuminate more space. For reading or similar activities, bulbs are often larger and feature a white interior coating to reduce eye strain.
Incandescent light also includes heat lamps, which require a lot of energy and are commonly used as a heat source. These lights are often installed on farms to keep animals warm during winter, especially in places like chicken coops or houses where they encourage egg production.