Save invisible beauty and develop "LED" lights for insects.

(LED) according to the daily mail of the UK, scientists from University of Southern California have developed a LED light bulb emitting less blue and green wavelengths, which has reduced the attractiveness of moths and other insects by 20%. The age of light attracting insects is going to be the past.

This technology can even play a greater role in tropical areas to save lives, because insects in tropical areas carry a large number of potentially fatal diseases.

The light emitted by traditional bulbs, especially the blue wavelengths emitted by LED bulbs, has great attraction for many insects. These insects, such as mosquitoes, sand flies, sucking blood bugs and so on, will increase the risk of human infectious diseases.

At present, 6 million people worldwide are infected with trypanosomiasis, most of them are concentrated in Latin America. The spread of the disease is the blood sucking and hunting bug attracted by light. Sand flies cause human infection with parasites, killing 20 thousand people a year, and malaria by malaria, killing 600 thousand people each year.

In Australia, a swarm of flying insects is heading towards the lights.

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

For example, blue, purple and ultraviolet wavelengths are very attractive to moths and other insects, so these wavelengths are shielded from LED bulbs.

The team led by Professor Longcore, with the help of PHILPS laboratory, hopes to reduce the number of insects attracted by light while maintaining the white light required for indoor lighting. "In order to carry out this research, we designed a unique disposable LED bulb to reduce the attraction of insects by firing different wavelengths of colors," said Dr. Andr e Barroso, a senior scientist at PHILPS.

The researchers compared the special bulbs with the commercial lighting LED lamps and compact fluorescent lamps. They found that although special light bulbs were brighter than conventional LED lamps, they attracted less than 20% of the insects.

Professor Longcore said: "this study confirms that we can shield part of the spectrum in LED lamps (those which are unfavourable to the environment) and still provide indoor lighting. For those places that have not yet been popularized glass windows in the world, it is very important to reduce the attraction of indoor lighting to insects. (compile /LED net Flora)

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