The incandescent lamp is heated to the incandescent state of the filament to the incandescent.Since T.A. Edison in the United States has made carbonized fiber (that is, carbon silk) incandescent lamps in the United States, after the continuous improvement of filament materials, filament structures, and filling gases, the lighting efficiency of incandescent lamps has also improved accordingly.In 1959, the United States developed a large -volume and low -decaying halogen lamp on the basis of incandescent lamps.The development trend of incandescent lamps is mainly to develop energy -saving bulbs.The structure and components of different purposes and requirements are different.Although the light effect of incandescent lamps is low, the light color and lighting performance is good. It is the most output
The difference between incandescent and sunlight lamps
The incandescent lamp, also known as electric bulb, is the working principle that the current is over -the -fiber (tungsten wire, the melting point is more than 3,000 degrees Celsius) generates heat.When the state is in the state, it is like the burning iron can emit light.The higher the temperature of the filament, the brighter the light emitted.Therefore, it is called incandescent lamp.When the incandescent lamp is shining, a large amount of electricity will be converted into thermal energy, and only a few (maybe less than 1%may not be calculated) can be converted into useful light energy.The light emitted by the incandescent lamp is full -color, but the ratio of various color light is determined by the luminous substance (tungsten) and the temperature.The unbalanced ratio leads to the color of the color of the light, so the color of the object under incandescent lamps is not real enough.
Candidate Light Power
The common rated power is 25 watts, 40 watts, 60 watts, and 100 watts. The thicker the filament in the bulb, the larger the power, the brighter it.There are 220V [伏], ** w [tile] on the bulb, ** W means how many tiles of incandescent lamps
What is the principle of glowing of incandescent lamps
When the current passes through the filament, the heat generates heat, and the spiral filament continuously gathers the heat, so that the temperature of the filament is incandescent with a temperature of more than 2000 degrees Celsius (the filament is generally tungsten, and the melting point is about 3000 degrees Celsius).It will be stimulated, so that it will jump towards the outer layer of higher energy. When the electrons jump again to the low -energy electronic layer again, the excess energy is released in the form of light and generated heat at the same time. Therefore, it is called incandescent lamp.Essence
What is the black when the incandescent lamp is used for a long time?
Tungsten wires are brightened in incandescent lamps. Tungsten wires can maintain stability at a high temperature without melting. Instead, they can be directly promoted into gases. After turning off the lights, the temperature drops, and the tungsten gas is re -condensed into a solid.It is covered on the inner wall of the light bulb. Because tungsten is black solid, after a long time, the incandescent lamp is used for a long time, and the tungsten on the inner wall of the lamp repeatedly accumulated, and the bulb will become black.The incandescent lamps have a life span. Generally, the life span is not long after hacking. The black bulbs will affect the quality of lighting, and it is not beautiful.The place that requires good lighting should be changed as soon as possible to avoid the bulbs suddenly broken without spare light bulbs, which affects normal lighting and life, causing various inconveniences.
The difference between incandescent and energy -saving lamps
The difference between incandescent and energy -saving lamps 1. The service life of the incandescent lamp in the use of the life span is usually within 1,000 hours; the service life of the energy -saving lamp is more than 6000 hours.

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