辐射光 Wavelength (nm) 10-810-6 10-4 10-2 10 10 109 1010 101 Cosmic rays Gamma rays X rays Radar Radio waves am 102%,1024,102 100 1018 1016 1014 1012 100 10 Frequency(cycles/sec) VISIBLE LIGHT Violet Blue Green Red Infrared 380 460 540 620 700 780 Wavelength (nm) 辐射光