The pace of development of new technologies are amazing. LED revolution in lighting
In just a few years, mobile communications, the Internet, and the latest samples of electronics have won. In the same row, LED lamps took their place, whose path to success began with Christmas tree garlands and signal lights.
LEDs are a product of the efforts of physicists. In 1907, the fact of the solid semiconductor glow was established. After 55 years, a prototype LED, suitable for practical use, was created. In 1971, the mass production of LED indicators began, and only in the early 90s three Japanese scientists Isam Akasaki, Hiroshi Amano and Suji Nakamura created a cheap blue LED, for which in 2014 they were awarded the Nobel Prize in Physics. In a short time, the invention was transformed into modern LED panels, which quickly reached the leading position in the market of electrical engineering.
LED lighting device
The basis of such a lamp is a semiconductor crystal of rare earth elements. It is placed in a reflector made of polished aluminum or copper, which simultaneously serves as a cathode, after which everyone is poured with a transparent compound that acts as a lens. In addition, there are a lot of technical nuances that determine the color and power of the glow, the scattering angle, control the permissible current parameters and so on. Modern LEDs are, if I may say so, in infancy, but the ceiling lights have already managed to outrun the popularity of the lamp.
Advantages of LED lighting
Since its inception, LEDs have already loudly declared themselves and have a great future. A few years have passed, and programs for a complete transition to this type of lighting have appeared in many countries. The main advantages of such lamps include:
- long service life - 30-50 and more than thousand hours, which is 2-3 times higher than the indicator of luminescent products;
- low energy consumption - about 10% less than that of the popular "housekeepers" of daylight;
- high light output - 80-110 lm / W, which is comparable to fluorescent lamps and 2.5-5 times better than incandescent lamps, including halogen ones;
- the possibility of obtaining a luminous flux of any spectrum without the use of light filters;
- lack of inertia of inclusion, which is the main disadvantage of fluorescent products;
- environmental safety - mercury is not used in production.
The list of their merits does not end there. Today, LED panels, which provide economical illumination of large areas, displacing traditional fluorescent lamps, have taken over the baton. Manufacturers of LED lamps still have work to do. This applies primarily to reduce the cost of high-power products.
Scope of use of LED lamps
Currently, the use of LED lamps is not limited. They are used for domestic and interior lighting, in offices, public and industrial buildings, on the street, including the lighting of buildings. Already created models for the head light of cars and portable searchlights, but their cost is still high.Despite their size, LED panels are relatively inexpensive, since they consist of many small lamps, which together produce excellent luminescence values. Other types of household fixtures feature a variety of design solutions, shapes and sizes, not counting the fact that LED lamps are available with all types of caps.