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:
Apr. 03, 1990
Filed:
Dec. 23, 1988
Applicant:
Inventors:
Matthew S Brennesholtz, Waterloo, NY (US);
Raymond G Greene, Romulus, NY (US);
Assignee:
North American Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358 60 ; 358 64 ; 313478 ;
Abstract
The variation in center-to-edge luminance gradient along the minor axis of the red-emitting and/or blue-emitting tube having a multilayer interference filter, is reduced by reducing the number of layers in the filter making it easier to match the gradients to that of the green-emitting tube, and thereby improve the white field uniformity of a projection color TV employing three monochrome cathode ray tubes.
Brennesholtz, Matthew. (1990). Projection color tv using crts having interference filters with (U.S. Patent No. 4914511). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4914511
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile