1) " Projector" -- As it applies to Projector Lights ...
2) " Lights" -- As it applies to Projector Lights For other uses, see Light(disambiguation). Prism splitting light Light is electromagnetic radiation witha wavelength that is visible to the eye, orin a more general sense, any electromagnetic radiation in the range from infrared to ultraviolet. The three basic dimensions of light (and of all electromagnetic radiation) are: intensity (or brilliance or amplitude, perceived by humans as the brightness of the light), frequency (or wavelength,perceived by humans as the color of the light), and polarization (or angle of vibration and not perceivable by humans underordinary circumstances) Due to wave-particle duality, light simultaneouslyexhibits properties of both waves and particles. Contents 1 Visible electromagnetic radiation 2 Speed of light 3 Refraction 4 Optics 5 Color and wavelengths 6 Measurement of light 6.1 SI light units 7 Light sources 8 Theories about light 8.1 Early Greek ideas 8.2 10th century optical theory 8.3 The 'plenum' 8.4 Particle theory 8.5 Wave theory 8.6 Electromagnetic theory 8.7 Particle theory revisited 8.8 Quantum theory 8.9 Wave-particle duality 8.10 A light wave 9 See also Visible electromagnetic radiation Light is the visible portion of the electromagneticspectrum, between the frequencies of 7.5×10 14 hertz (abbreviated 'Hz') and 3.8×10 14 Hz. Since the speed ( v ), frequency ( f or ν), and wavelength (λ) of a wave obey the relation: and the speed of light in a vacuum c is fixed, light can alsobe characterised by its wavelength of between 400 nanometres (abbreviated 'nm') and 800 nm (in a vacuum ). Light excites the rod cells and conecells in the retina of the humaneye, creating electrical nerve impulses that travel up the optic nerve to the brain, producing vision. ...
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