ray path in Chinese
- The ray paths are circles .
- Any outgoing ray path must be coincident with that of the returning ray .
- The anisotropy associated with the earth's rotation results in a slight deflexion of the ray paths .
- Ray path transmission loss
- Shorter barlows , or ones with too much magnification , only exacerbate the problem because the ray path entering the eyepiece is steeper
- Vignetting can occur due to the altered ray path , when the eyepiece ' s lenses are not large enough in diameter to allow all the rays to make it through
- The two point ray tracing is based on the snell theory and the fermat " minimum travel time principle " , which advantages is that it can calculate the accurate ray path from the source to the receiver
- Numerical simulations were done to show the distortion of the wavefront and the interference pattern under several kinds of typical plasma density distributions . the ray path in plasma was calculated by the numerical solution of the vector equation of light ray , when the plasma density was closing to the critical electron density of the laser frequency . through the simulations , the factors that influence the measurement were found out under different density distributions and shapes of plasma
- The gauss - ray tracing have the dynamic and geometric character . it can compose the record by calculating the high frequency wave in transverse anisotropic medium , avoiding getting the accurate ray path . it is a very steady and effective method with little calculation time and a good precision
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