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.

Date of Patent:
Apr. 10, 1979

Filed:

Feb. 04, 1977
Applicant:
Inventors:

Pieter Bracke, Aichwald, DE;

Dieter Forker, Esslingen-Mettingen, DE;

Dieter Kropsch, Kongen, DE;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
29 2516 ; 316-1 ; 316 23 ; 316 29 ;
Abstract

An optical adjusting method and apparatus for aligning the electron gun system in color television picture tubes during the sealing process. The electron gun system and the picture tube prior to assembly are separated from each other with the electron gun system being supported for rotation about its longitudinal axis and having optically effective position marks which may comprise slots or columns thereon for aligning the electron gun system in a predetermined alignment. A light beam traverses the position marks which, in the electron gun system, when properly rotated, coincides with the axis between a light source and a light intensity measuring means such that the electron gun system is aligned in its predetermined alignment when a maximum light intensity with respect to a predetermined threshold is detected.


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