EIA TEB24-1981

PURPOSE

These notes provide means of analyzing the effect of pulse shape
on the written spot configuration and its relative brightness in
raster-dot displays. The observations noted and the application of
the methods described will provide the equipment designer with
better insight into pulse shape limitations, observed spot size,
spot shapes and their luminance distributions as well as variations
resulting from changes in the applied drive-voltage levels in a
particular tube design. The subject discussed is becoming
increasingly important due to the demands for higher resolution and
increased writing speeds.

It will be shown that after the luminance and line width
characteristics of a given CRT design in terms of the drive voltage
have been established, the spot shape and its luminance
distribution can be synthesized for any pulse shape at a given set
of operating conditions.