Retroreflectors

Details Retroreflectors Retroreflectors

1976-03-15

1977-10-11

Buczinski, S. C.

Optics: measuring and testing

Angle measuring or angular axial alignment

Apex of angle at observing or detecting station

116124R, 340258B, 350 98, 350100, 350102, 350298, 350299, 356152, G01B 1126, G01D 2104, G02B 512

Patent

active

040532330

ABSTRACT:
A system is disclosed for detecting, locating and monitoring floating objects and other subject matter at sea on another body of water or in other location of difficult access. A floating unit contains several retroreflecting elements and is placed at a location where detection is desired. For example, rescue or monitoring can be facilitated by detecting the floating unit from the air. Detection may include air borne signal apparatus such as a scanning laser beam or ordinary light source and air borne detection apparatus for detecting and analyzing a reflected signal.

REFERENCES:
patent: 1813874 (1931-07-01), Eskilson
patent: 2604644 (1952-07-01), Tilton
patent: 3540801 (1970-11-01), Schmidt
patent: 3577561 (1971-05-01), Oshima et al.
patent: 3611277 (1971-10-01), Yoder
patent: 3705955 (1972-12-01), Assouline et al.
patent: 3741653 (1973-06-01), Svetlinchny
patent: 3863064 (1975-01-01), Doyle et al.

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