(under subclass 567) Subject matter wherein there are two electrodes spaced from each other in terms of, (1) the distance between the electrodes or a range of distances between them, or (2) the distance between them stated relative to a parameter of the discharge device or an operating parameter of the device.
(1) Note. The parameter may be an electrical parameter with respect to the spacing of the electrodes or a nonelectrical parameter of the discharge device with respect to the spacing of the electrodes.
(2) Note. Included in the parameter are the, (1) gas or vapor pressure of the discharge device with respect to the spacing between electrodes or the product of the gas or vapor
pressure and the spacing between the electrodes, and (2) the electrical power to operate the discharge device with respect to the electrode spacing or the voltage necessary to operate the discharge device with respect to the electrode spacing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
581+, for a three or more electrode gas or vapor discharge device, particularly subclass 602 for an interposed grid like or apertured electrode in the discharge space between two other electrodes, the spacing between the interposed electrode and another of the electrodes being less than the mean free path distance.
605, for a gas or vapor discharge device where the distance between electrodes is less than the mean free path distance.
619, for a gas or vapor discharge device where the spacing between the electrodes is such, when operated, to emit visible light only by the negative or cathode glow discharge.
