Focusing electrode | Article about focusing electrode by The Free Dictionary
focusing electrode[′fō·kəs·iŋ i‚lek‚trōd]
An electrode to which a potential is applied to control the cross-sectional area of the electron beam in a cathode-ray tube.
References in periodicals archive
The focusing action is brought about by a pair of grids which separate the time-of-flight and focusing electrodes
each of which is set at about 18 kV to 20 kV.