Halogen lamps generally refer to halogen bulbs.Halogen Lamp (English: Halogen Lamp), referred to as halogen bubbles or halogen lamps, also known as tungsten halogen bulbs and quartz light bulbs, is a variant of incandescent lamps.The halogen lamps are made of tungsten wire, but they are wrapped in a smaller quartz glass shell.Because the glass shell is very close to the filament, it will easily melt if it is made of glass.
What is the halogen lamp
First, what the halogen lamp is the shape of the halogen lamp is generally a small quartz glass tube. Compared with incandescent lamps, its speciality is that tungsten wires can "self -regeneration".In fact, there are some halogen elements in this lamp filament and glass shell, such as iodine and bromine.When the filament is hot, tungsten atoms are evaporated towards the wall of the glass tube wall.When they are close to the glass tube, tungsten steam is "cooled" to about 800 ° C and combined with halogen atoms to form tungsten melide (tungsten iodide and tungsten bromide).Tungsten tungsten moves to the center of the glass tube and falls on the corrosive filament.Because tungsten tungsten is very unstable, it will be decomposed into halogen vapor and tungsten after heat, so that tungsten is deposited on the filament, which makes up for the evaporation part.In this cycle, the service life of the filament will be extended a lot.Halogenlamp, also known as tungsten halogen bulb, is a type of incandescent lamp.The principle is to inject halogen gas such as iodine or bromine in the light bulb. At high temperature, the sublimated tungsten filament and halogen can chemically act. The tungsten after cooling will re -solidify the tungsten wire to form a balanced cycle to avoid premature broken tungsten filament.EssenceTherefore, halogen bulbs live longer than incandescent lamps.Second, the characteristics of halogen lamps are made of tungsten filament, but they are wrapped in a smaller quartz glass shell.Because the glass shell is very close to the filament, it will easily melt if it is made of glass.The gas in the glass shells consists of a halogen lamp group by different gas.These gases have a very interesting characteristic: they are combined with tungsten vapor.If the temperature is not high enough, the tungsten atomic evaporation and filament of halogen gases are deposited on the filament.This cycle has made the filament last a lot of time.In addition, it can run hot filaments, which means that you get more light energy.You still get a lot of heat, but because the quartzs glass shell is so close to the filament, it is hotter than a normal light bulb.The halogen bulbs can also operate at a higher temperature than ordinary incandescent lamps, and their brightness and efficiency are higher.However, at this temperature, ordinary glass may be softened, so halogen bulbs need to use higher soluble quartz glass.Because quartz glass cannot block ultraviolet rays, halogen bulbs usually need to be used with ultraviolet filters.If the crystal glass on the halogen bulbs is oily, the temperature on the glass will be different, reducing the life of the bulb.Therefore, when changing halogen bulbs, avoid the glass of the light bulb when changing the halogen bulbs.If your fingers are touching, you should clean it with alcohol.

Related tags： Houseware