What is an incandescent lamp? Features of an incandescent lamp

2021-04-23 09:12:06 lighting 10

Speaking of lamps, I believe you are not unfamiliar with incandescent lamps. After all, this is a lamp with a long history, which has been convenient for mankind for a long time. However, with the continuous development of technology, incandescent lamps are gradually replaced by new lamps. , Now it can be said that there is less to see. So what exactly is an incandescent lamp? What are its advantages and disadvantages?

Introduction to incandescent lamps

The incandescent lamp is an electric light source that energizes and heats the filament to an incandescent state, and uses thermal radiation to emit visible light. Since T.A. Edison of the United States made a carbon fiber (carbon filament) incandescent lamp in 1879, the luminous efficiency of the incandescent lamp has been correspondingly improved through the continuous improvement of filament materials, filament structure, and filling gas. In 1959, the United States developed a tungsten halogen lamp with extremely small volume and decay based on the incandescent lamp. The development trend of incandescent lamps is mainly to develop energy-saving bulbs. Although the luminous efficiency of the incandescent lamp is low, the light color and light collection performance are good, and it is a large output and widely used electric light source.

Advantages of incandescent lamps

The price of compact fluorescent lamps is about 10 times that of incandescent bulbs, but the lifespan is 6 times that of the latter, and for products with the same brightness, fluorescent lamps consume less than a quarter of incandescent bulbs.

With the continuous emergence of new products, new light sources have also been born, such as LED light-emitting diodes, which are semiconductor solid light-emitting devices, known as fourth-generation lighting sources or green light sources, which are energy-saving, environmentally friendly, long life, and small in size. Features: The service life can reach 60,000 to 100,000 hours, which is more than 10 times longer than that of traditional light sources; the electro-optical power conversion can exceed 10%, and the same lighting effect can save more than 80% of energy than traditional light sources.


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