Measurement of Beam Landing Errors on Cathode Ray Tube
Original Publication Date: 1982-Oct-01
Included in the Prior Art Database: 2005-Feb-10
Using a microscope for measuring purity and other beam landing errors on color cathode ray tubes (CRTs) is a time consuming, tedious and not very accurate process. In the method proposed below, the use of a microscope is kept to a minimum and by using an XY plotter of only A4 size, an effective linear magnification of at least 500 times can easily be realized, the best practical magnification with a microscope being about 120 to 150 times.