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:
Sep. 05, 1978
Filed:
Jun. 28, 1974
Applicant:
Inventors:
Jan Hendrik Duistermaat, Eindhoven, NL;
Johannes Cornelis VAN Nes, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
96 361 ; 96 2 / ; 354-1 ;
Abstract
An exposure device for establishing the phosphor dots of a shadow mask color television tube. The apertures in the shadow mask are optically projected from a light source onto a photosensitive layer on the window of the tube. Arranged between the light source and the shadow mask is a cylinder lens with its axis in the direction of one of the main directions of the deflection coil system.