Ten years ago, incandescent lamps were a must-have for every household. The term incandescent lamp is now a memory of a generation, but what is the incandescent lamp in terms of rationality?
Is the incandescent lamp a tungsten lamp?Incandescent lamps are also made of tungsten wire, so incandescent lamps and tungsten lamps are not fundamentally different, so what is the incandescent lamp is the tungsten lamp. Ordinary incandescent lamps are filled with nitrogen; some small tungsten lamps are filled with halogen gas, such as iodine. These lamps are called halogen lamps, which have a longer service life and are often used in the direction lights of vehicles.
Incandescent lamps and halogen lamps are illuminated by the principle of white heat, also known as hot lamps.
What is the incandescent lamp? The bulb is mainly made of heat-resistant glass such as glass bulb, filament, wire, column, lamp holder, etc. The incandescent lamp is filled with tungsten wire. The air is removed from the bulb to prevent oxidation of the filament or refill with an inert gas such as argon to reduce the sublimation of the tungsten filament.
Principle of illumination of incandescent lampsWhen we turn on the light, the high temperature heats up the tungsten and combines with the halogen elements. However, this compound is unstable and decomposes into a halogen gas and tungsten, and the tungsten is re-adsorbed onto the filament to achieve a dynamic equilibrium state of the reciprocating cycle.
The principle of illumination is different:
Different luminous efficiency;
Different spectral characteristics
Incandescent lamps are also made of tungsten, so incandescent and tungsten lamps are not essentially different. Ordinary incandescent lamps are filled with nitrogen. Some small tungsten lamps are filled with halogen gases. For example, lamps containing iodine are called halogen lamps. The president has some lights that are often used in the car.
Incandescent lamps and halogen lamps use the principle of white heat to emit light, which is also called a hot light lamp. The principle of the fluorescent light is different. The phosphors emitted by the electrons flowing from the two poles of the lamp tube are bombarded on the wall of the lamp tube, which finally cause the phosphor to emit light because the heat is small. The energy-saving lamps of the cold light are the same. The light-emitting principle is different. There are U-shaped, H-shaped, round-shaped and many other variants. In addition, there are many other high-pressure mercury lamps with a purple color. A lot of street lights are used, the high-pressure sodium lamp is yellowish in color, and the small sun is often said on the construction site.
Incandescent lamp: It is a heat source because it emits heat due to the heat of the current. It is characterized by low luminous efficiency, continuous spectrum and low color temperature.
Tungsten filament lamp: It is an improvement of incandescent lamp, the other is the same. However, the life of energy-saving lamps is too short. In the past few years, the country promoted energy-saving lamps. Energy-saving lamps are used to convert ballasts made of coils into electronic circuits. They are large, easy to generate noise, low in efficiency, no sound, and efficient. Improved, iodine-tungsten lamp, not continuous spectrum, poor color rendering.
Fast Recovery Diode,Ultra Fast Recovery Diode,Fast Recovery Rectifier Diode,Fast Recovery Epitaxial Diode
Shenzhen Kaixuanye Technology Co., Ltd. , https://www.iconlinekxys.com