An article on the negative impact of energy-saving lamps on child health. Proper lighting of the workplace of the student.

Solving the problems of organizing a student’s workplace is of paramount importance because schoolchildren, especially elementary school students, spend a lot of time at their workplace.

The main element of the student’s workplace, ensuring its convenience and practicality, of course, should be recognized as general and desktop lighting. There are a lot of options for such lighting, and advertising and cunning managers are particularly persistent in using energy-saving lamps as such ...

The abbreviation LED is derived from the English phrase Light Emitting Diode, which means a diode that emits light. In other words, an LED is a semiconductor device that converts the electric current passing through it into light radiation.

The main element of the LED is an artificial semiconductor crystal. It comes in red, yellow, green and blue. This part is placed in a copper or aluminum cup, which also acts as a reflector and cathode. A golden thread is welded to the crystal, which serves as the anode. It is all filled with a transparent compound and give it the necessary shape. To ensure stable operation ...

The article talks about the design of LED lamps. Several schemes of different complexity are considered and recommendations are given for the independent manufacture of LED light sources connected to a 220 V network.

As a result of the global crisis, the problem of energy conservation around the world has become even more relevant. In this regard, from September 1, 2009, in 27 countries of the European Union, the sale of incandescent lamps with a capacity of 100 or more watts has already been banned. And already in 2011 in Europe, it is planned to introduce an embargo on the sale of the most popular 60-watt light bulbs for buyers. By the end of 2012, a complete rejection of incandescent lamps is planned.

The U.S. Congress passed a law on the rejection of incandescent lamps in 2013. According to these laws, residents of the European Union and the United States will fully switch to energy-saving light sources - fluorescent and LED lamps ...

The range of recessed spotlights today can satisfy, perhaps, any, even the most demanding customer. Not the last role when choosing fixtures is played by bulbs installed in fixtures.

Just a couple of years ago, there were only two types of bulbs — halogen and incandescent — for recessed spotlights. We will not dwell on the description of the variety of halogen lamps. The purpose of the article is slightly different - to show the advantages and disadvantages of various types of lamps.

The principle of operation in both lamps is approximately the same. The only difference is the gas that the bulbs of bulbs are filled with ...

Features of the device of organic LEDs and prospects for the development of OLED technology.

For light signaling, LEDs have been used for a long time. Currently, the production of LED lamps used for lighting is actively developing. Their advantages are obvious: high efficiency, long service life, low power consumption. Now a new direction is beginning to gain momentum - the production of organic LEDs.

Organic light-emitting diodes are a set of films of organic origin, which, when passing an electric current, begin to glow.In this case, the light is distributed evenly over the entire area of ​​the material ...

The economic calculation of the payback and economic efficiency of energy-saving (fluorescent) lamps.

In Russia, every year more and more is not enough electricity. It is becoming increasingly difficult to obtain permission to connect industrial facilities and private households. According to the forecasts of power engineers, the doubling of electricity generation will occur no earlier than in 15 years. Therefore, electricity prices are constantly growing and will strive to reach the average European - 9 rubles / kWh.

However, there is a fairly simple way to achieve energy savings and reduce the cost of its purchase ...

Reason for switching to energy-saving LED products. Comparison and simple mathematical calculation of the savings and benefits of the purchase in the long run.

Today, many talk about new energy-saving technologies. That in the near future the traditional "Ilyich bulbs" will live out their Century and a new era is coming, or rather the electrical LED revolution.

This issue has risen to the state level. Starting with the President, who gave instructions to the state corporations Rosstekhnologii and Rusnano, to introduce energy-saving technologies, due to the fact that electricity is not used up efficiently and it is time to break stereotypes and keep up with the times. Factories will be built in a short time on the territory of Russia, where they will produce LED products ...

Many people know that modern LEDs are more effective than incandescent lamps, and some models can argue with fluorescent lamps. But rarely does anyone think about what changes these technologies promise us.

Almost two trillion dollars - so many new LEDs will save earthlings in the next 10 years, provided they are widely implemented. In energy units, the savings will be expressed in 18.3 terawatt hours. Reducing CO2 emissions over this “LED” decade will be 11 gigatons, and oil consumption will drop by almost a billion barrels. And 280 average power plants can be closed.

Yes, professors Jung Kyu Kim and Fred Schubert from Rensselaer Polytechnic Institute approached the forecast of the future of solid-state lighting systems. They tried to go beyond the scope of saving electricity "for one house" and imagine what our world will be like, in which LEDs will become much more widespread ...