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:
Jul. 21, 1987
Filed:
Oct. 01, 1984
Thomas K Balogh, Troy, MI (US);
John M Balogh, Chicago, IL (US);
Other;
Abstract
A method and anamorphic viewing lens is disclosed for producing a wide angle television or other CRT screen display, which display is expanded along the horizontal axis to allow increased visual information content or to change the aspect ratio for television viewing of wide screen motion pictures. The method includes the step of producing a width-compressed record of a field of visual features, displaying the width-compressed video record on a television or other CRT screen, which display is viewed through a single axis anamorphic viewing lens according to the invention to produce a width-expanded image of the television screen displayed record. The width-compressed video record is produced in several ways including filming a scene through an anamorphic lens system; recording the scene through a second reverse geometric version of the anamorphic lens according to the present invention; or by electronic processing of the video signal data. Alternatively, the anamorphic record may be projected through a single axis anamorphic lens for direct viewing of a width-expanded image. The single axis anamorphic lens comprises an eschelon lens formed by a sheet of optically transparent material having a series of parallel, vertical sawtooth grooves formed into one face, which increase nonlinearly in angularity from the center of the lens to the outer lateral edges.