The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 1990
Filed:
Oct. 31, 1988
William S Beamon, III, Ormond Beach, FL (US);
General Electric Company, Syracuse, NY (US);
Abstract
A helmet mountable display system includes separate optical paths for providing a respective image to the left and right eye of an observer for stereoscopic viewing. Each of a first and second plurality of spaced apart, substantially point light sources supply a respective group of modulated rays of light. The rays of each group are collimated by a respective input lens and the collimated rays from each input lens are directed so that their envelopes all intersect at the same point. A horizontal and a vertical deflecting surface are disposed on opposite sides of the intersection point. Electro-mechanical drivers move the surfaces which scan all the collimated rays. The scanned rays from each group are focused onto a respective screen by a respective output lens to form a raster scanned image. The screens are divided into a plurality of contiguous zones with a ray from each light source assigned to a corresponding zone, which reduces the vertical scan angle excursions required. Simultaneous scan lines from the rays are displayed in each zone on the screen which reduces the video bandwidth requirement of the system. The image from the screens is supplied to the inside surface of a visor from which it is reflected to a corresponding eye of the observer.