The "uncharisma" LED lamp for the development of the invisible beauty

[LED] according to the daily mail, scientists from University of Southern California have developed a LED bulb that launches less blue and green wavelengths, reducing the attractiveness of moths and other insects by 20%. The time that lights attract groups of insects is about to be in the past.

This technology can even play a greater role in the tropics - saving lives, because most of the insects in the tropics carry a large number of potentially deadly diseases.

The light emitted by a traditional bulb, especially the blue wavelength emitted by the LED bulb, is very attractive to a variety of insects. These insects, such as mosquitoes, sand flies, and blood sucking bugs, can increase the risk of infectious diseases in humans.

At present, a total of 6 million people worldwide are infected with trypanosomiasis, most of them concentrated in Latin America, and the spread of the disease is a blood sucking bug that is attracted by the light. Sand flies can cause human parasites to cause 20 thousand deaths a year, and mosquitoes transmit malaria, causing 600 thousand deaths a year.

In Australia, a swarm of flying insects flocked to the light

Although we may think that the brightness of the light attracts insects, scientists from University of Southern California have shown that the main cause is the color of the light. Travis Longcore, an associate professor of space science at the University of Southern California, says that in the future, LED bulbs can be customized to reduce the attractiveness to specific insects. All insects are attracted by white light, but different insects are sensitive to specific combinations of wavelengths.

For example, the wavelengths of blue, purple and ultraviolet are very attractive to moths and other insects, so these wavelengths are shielded in the LED light bulbs that have been tested.

The team led by Professor Longcore, with the help of the PHILPS laboratory, hopes to reduce the number of lights that attract insects and keep the white light needed in the room. Dr. Andr e Barroso, a senior scientist at PHILPS, said: "to do this, we have designed a unique one - time LED bulb to reduce the attractiveness of insects by emitting wavelengths of different colors."

The researchers compared the special light bulb with the existing commercial lighting LED and compact fluorescent lamps. They found that, although the special light bulb was brighter than the conventional LED light, it was 20% less attractive to insects.

Professor Longcore said: "this research confirms that we can shield part of the spectrum of the LED light, which are unfavourable to the environment, and still provide for indoor lighting. It is important to reduce the attraction of indoor lighting to insects in places where glass windows are not widely used in the world. " (compiled /LED network Flora)

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