| what is ultraviolet (uv), infrared lighting small knowledge? - China lighting network

So-called ultraviolet, infrared, who said it should be referred to as the ultraviolet radiation and infrared radiation. Understanding and research is the earliest visible radiation that is commonly known as visible light. Later scientists in research with mitsubishi mirror in the solar spectrum, found in the spectra and the red light purple light boundary, there is also invisible, but of similar nature and visible light 'light'. Because they are located in purple and red light visible spectrum area, thus received the name of the now. A range of 780 nm - is the wavelength of the infrared radiation - 1mm。 Range of 1 - is the wavelength of ultraviolet radiation - 380 nm, including 1 nm to 200 nm radiation will be absorbed by the air and cannot be spread in the air, can only travel through a vacuum, so this part is also known as vacuum ultraviolet radiation. Although we can't see these two kinds of radiation, because they have a variety of physical, chemical and biological effects, there is a close relationship not only with our life, and have important applications in science and technology. Whether radiation from the sun and all kinds of artificial light, contain more or less of ultraviolet and infrared radiation. In lighting engineering, on the one hand, to reasonable use, environment beneficial to human body of ultraviolet and infrared radiation; On the other hand will try to avoid and limit is harmful to human body, environment and lighting objects of these two kinds of radiation; While expanding their widely in science and technology, medicine and health care, health care and other aspects of the application, to the benefit of human society. YanZhiXiang

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