Accession Number : ADD009209

Title :   Head Position and Orientation Sensor.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Breglia,Denis R ; Oharek,Frank J

Report Date : 14 Dec 1981

Pagination or Media Count : 9

Abstract : A head position and orientation sensor system utilizes a head-mounted projector of known scan pattern which presents a visual display to the observer. In order to maintain proper display orientation, the head position and orientation are measured by intercepting the projected light scan pattern at a retroreflective screen upon which the visual display is focused. A photodetector array mounted in said screen intercepts the visual display regardless of head orientation and position. A computational unit having knowledge of the scan pattern parameters correlates the photodetector array output to a unique head position and orientation. (Author)

Descriptors :   *Patent applications, *Helmet mounted displays, *Visual aids, Head(Anatomy), Position(Location), Orientation(Direction), Measurement, Flight simulators, Display systems, Image projectors, Photodetectors, Screens(Displays), Optical retroreflection, Optical scanning, Interception, Computations, Flight simulation, Flight helmets

Subject Categories : Humanities and History
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE