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:
Nov. 16, 1999
Filed:
May. 22, 1998
Applicant:
Inventors:
Paul Weissman, Brewster, NY (US);
Brian Welch, Baie d'urfe, CA;
Assignee:
CAE Electronics Ltd., Quebec, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
353 28 ; 359630 ; 345-7 ;
Abstract
The eyepiece of the helmet mounted display optics is formed by a beam splitter eyepiece cube and a spherical mirror to create a magnified virtual image of a rear projection screen mounted to the eyepiece cube at a relatively large distance from the observer. The rear projection screen receives an image from a spatial light modulator display which is illuminated by a separate light source.