Accession Number : ADD004021

Title :   Passive Optical Rangefinder.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Feldman,Sidney ; Barton,George G , Jr

Report Date : 01 Mar 1977

Pagination or Media Count : 7

Abstract : The present invention provides within a ship, a passive electro-optic device for providing a measurement of the range, together with a positively identifiable image of an approaching ship or object day or night on a CRT, with the range displayed digitally on the CRT. The rangefinder capability provides a substitute or supplement to radar or active-gated laser beam rangefinders for collision avoidance and station-keeping. (Author)

Descriptors :   *Patents, *Stereoscopic range finding, *Surface navigation, Collision avoidance, Stationkeeping, Passive systems, Ships, Television cameras, Electronic scanners

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE