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:
Dec. 25, 1990
Filed:
Aug. 23, 1989
Applicant:
Inventor:
Mort J Nierenberg, Lancaster, PA (US);
Assignee:
Thomson Consumer Electronics, Inc., Indianapolis, IN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
445 64 ; 445-3 ;
Abstract
A system for measuring the Q spacing of a kinescope panel without removing the mask from the panel includes an adder which stores the known thickness of the shadow mask and a known spacing. The adder also receives transducer inputs representative of measurements of the glass thickness, the distance of the shadow mask from a first reference plane and the distance of the panel from a second reference plane. The adder algebraically combines the stored and input data to yield an output representative of the Q spacing.