Passive Optical Rangefinder/Sextant Having Search Capability.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 25, 1981
- Accession Number
- ADD008656
Entities
People
- Sidney Feldman
Organizations
- United States Department of the Navy