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:
Oct. 16, 1990
Filed:
Nov. 20, 1989
Applicant:
Inventor:
Kenneth G Drewlo, Maple Grove, MN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358 88 ; 358-3 ; 358250 ;
Abstract
A three-dimensional image is produced on the screen of a cathode ray tube by incorporating within the tube a linear Fresnel lens and by appropriately causing the electron beam from one or more electron guns to be deflect onto discrete surfaces of the Fresnel lens whereby images recorded by a first camera will be deflected to a viewer's left eye and images recorded by a second camera are uniquely directed to the viewer's right eye.