Device for locating the source of coherent light through a turbu

Details Device for locating the source of coherent light through a turbu Device for locating the source of coherent light through a turbu

1988-05-20

1989-09-19

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

356141, G01J 120

Patent

active

048683787

ABSTRACT:
Devices includes light receiving elements which are divided into a number of groups in which each group has a common sensitivity direction. Within such a group the elements are spatially separated from each other at a distance of at least the order of magnitude of the decorrelation length of the light in question. The originally coherent light can be detected and the direction can be determined even during real operating conditions from the information given to the light receiving elements by detecting light of a statistically more favourable distribution.

REFERENCES:
patent: 3699345 (1972-10-01), Parkin
patent: 3700905 (1972-10-01), Parkin et al.
patent: 3875402 (1975-04-01), Parkin
patent: 4477145 (1984-10-01), Mori
patent: 4491727 (1985-01-01), Appelbaum et al.

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