Accession Number : ADD002130

Title :   Three 'D' Weapons Sight.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Rymes,William H

Report Date : 03 Sep 1974

Pagination or Media Count : 4

Abstract : The patent concerns an improved sighting device for projectile launchers that are mounted on a moving vehicle. It includes a dual parabolic visor slidably positioned on a helmet. The visor is in the form of two parabolas; and when locked in position, one parabola is in front of each eye of the wearer. The focal point of each parabola is at a prescribed point on the upper leading edge of the helmet opening. Fiber optic bundles, located at each focal point are connected to cathode-ray tubes and project a series of dots on to the visor in front of each eye of the wearer to simulate, in three dimensions, the trajectory of a projectile, if the rpojectile were fired at any given time.

Descriptors :   *Patents, *Fire control systems, *Optical sights, *Stereoscopic display systems, Aiming, Target acquisition, Projectile trajectories, Computer graphics, Cathode ray tubes, Launching, Guided missiles, Fiber optics, Helmets

Subject Categories : Fire Control and Bombing Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE