Title :
Method of measuring spot size of cathode-ray tube
Author :
Kuhn, R. B. ; Levine, Deb
Author_Institution :
Goodyear Aircraft Corporation, Akron, Ohio
fDate :
7/1/1956 12:00:00 AM
Abstract :
THE determination of the spot size of a cathode-ray tube has been, at best, a subjective process. Thus, the shrinking-raster method of measuring spot size relies on the judgment of the observer to determine when a set of lines appears to merge. Similarly, any attempt to measure the spot diameter with a microscope is also dependent upon the observer because of the way the flux density varies over the area of the spot.1
Keywords :
Cathode ray tubes; Electron tubes; Equations; Instruments; Lenses; Phosphors; Size measurement;
Journal_Title :
American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the
DOI :
10.1109/TCE.1956.6372539
