Generation of electromagnetic radiation

特許 係属中 Electromagnetic radiation (EM radiation or EMR) is a fundamental phenomenon of electromagnetism, behaving as waves and also as particles called photons which travel through space carrying radiant energy. In physics, all EMR is often referred to broadly as "light," whereas in other colloquial uses (and in Wikipedia) "light" is reserved for visible light, which is only a very small section of the spectrum of EMR.