Abstract
The number of specular points reflected in a random Gaussian surface is determined theoretically under the following alternative conditions: (1) when the surface is perfectly long crested (two-dimensional); (2) when the surface is three-dimensional but isotropic; (3) for quite general surfaces, provided that the observer and the source of radiation are both at a great distance from the surface.
The results can be applied to the similar problem when the surface forms the boundary of two refracting media.
© 1960 Optical Society of America
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