diffraction of light from the led lamp on the grating

background base basis blaze bright bulb color colorful coloring colour different diffraction distinguished eccentric element exceptional extraordinary flame flare flash foundation framework from glare glow grating gratings ground illuminant illuminating illuminative lamp led light lightening multi multicolor multicolored multicoloured obtained optics original pattern pedestal photometry physics polychromatic polychrome racy radiant shine source spectrum structure texture unusual using vivid waves