Accession Number : ADD008656

Title :   Passive Optical Rangefinder/Sextant Having Search Capability.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Feldman,Sidney

Report Date : 25 Jun 1981

Pagination or Media Count : 13

Abstract : Uniquely integrating a search mirror and a deflection mirror with a passive optical rangefinder and a remote sextant enhances the operation of both devices. The improved rangefinder/sextant provides day/night 360 deg azimuthal and -5 to 90 deg elevational search capability with the additional capability of pointing the search mirror at a navigational star in a direction different from that of an imaging camera. Thus, the imaging camera, can be pointed at the sea horizon that is least obscured by haze and/or sea clutter, thereby allowing altitude readings under adverse conditions. (Author)

Descriptors :   *Patent applications, *Range finding, *Sextants, Optical equipment, Searching, Mirrors, Deflection, Alignment, High resolution, Fire control systems, Target discrimination, Adverse conditions

Subject Categories : Optical Detection and Detectors
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE