You searched for: “electrostatic focusing
electrostatic focusing (s) (noun), electrostatic focusings (pl)
1. The point at which rays of light, heat, etc., meet, diverge, or seem to diverge after being reflected from a mirror, bent by a lens, etc.
2. A method of focusing the cathode-ray beam to a fine spot by the application of electrostatic potentials to one or more elements of an electron lens system.
This entry is located in the following units: electro-, electr-, electri- (page 83) focus-, foci- (page 1)