"light's" . "Light (Wave theory)" . "wavelengths of light" . "'''Light source'''" . "wave nature of light" . "radiation wave" . "Optical waves" . "Light" . "Light#Optics" . "luminous objects" . "a wave" . "optical properties" . . "wave theory of light" . "emissions" . "visual wavelengths" . . "God of light" . "rays" . "sun light" . "white" . "visible light transmission" . "quantum nature of light" . "wavelength of light" . . "wavelength" . . . . "radiated light" . "visible radiation" . . . . . . . . "visible light" . "Licht" . "classical" . "sources" . "Visible" . "Newton's anticipation of photons" . "light waves" . "optical wavelengths" . "Light" . "Visible light" . . . "glow" . "Optical" . "optical range" . "visible light frequency range" . "wave" . . "optical" . "photophysics" . "light angle" . "theory of undulatory light" . "illuminators" . "source" . "Light Refraction" . "Light#Wave theory" . "light energy" . "light propagation" . "visible-light" . "the electromagnetic nature of light" . "floodlights" . "light-emitting" . "lit" . "light sources" . "light source" . "Light#propagation" . "optical theory" . "light wave" . "rays of light" . "terahertz wave" . "radiation" . "light in moving media" . "liet" . "illumination" . "illuminant" . "Light#Light sources" . "visible" . . "investigated by the early Greek philosophers" . "(visible) light" . "Photophysics" . "red" . "blue light receptor" . "light" . "visible light radiation" . "beam of light" . "850 nm" .