Accession Number : AD0708685

Title :   ON THE LOCAL DETERMINATION OF THE DISTRIBUTION OF LIGHT AT ANY DOWNBEAM RANGE.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Tucker,J. W.

Report Date : JUN 1970

Pagination or Media Count : 17

Abstract : The expansion of the diffraction integral for a beam of light shows that the distribution of light at any point in the beam may be determined locally from that at the appropriate point in the converging cone of light from a lens or optical system. It is shown that this is an imaging process in which the downbeam point is treated as a virtual source. (Author)

Descriptors :   (*OPTICAL IMAGES, MATHEMATICAL ANALYSIS), INTEGRAL EQUATIONS, DIFFRACTION, LASERS, LIGHT TRANSMISSION

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE