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Rayleigh distance in relation to reflection from curved surfaces

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1 Author(s)
Lewin, L. ; University of Colorado, Department of Electrical Engineering, Boulder, USA

It is shown that the Rayleigh distance for a curved surface needs to be redefined to take into account curvature in the phase of the excitation. If this is done, it can become infinite for a finite reflector, thus validating the geometrical-optics design of Cassegrain subreflectors. Exceptional regions where this feature ceases to hold are indicated.

Published in:

Electronics Letters  (Volume:7 ,  Issue: 25 )

Date of Publication:

December 16 1971

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