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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.In optics, a ray is an idealized narrow beam of light. Rays are used to model the propagation of light through an optical system, by dividing the real light field up into discrete rays that can be computationally propagated through the system by the techniques of ray tracing. This allows even very complex optical systems to be analyzed mathematically or simulated by computer. Ray tracing uses approximate solutions to Maxwell''s equations that are valid as long as the light waves propagate through and around objects whose dimensions are much greater than the light''s wavelength. Ray theory does not describe phenomena such as interference and diffraction, which require wave theory (involving the phase of the wave).
Herausgeber Lambert M. Surhone
Herausgeber Miriam T. Timpledon
Herausgeber Susan F. Marseken
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