Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Radiant energy responsive load device
Patent
1980-04-11
1982-02-23
La Roche, Eugene R.
Electric lamp and discharge devices: systems
With radiant energy sensitive control means
Radiant energy responsive load device
250493, 313204, 372 85, H01S 3091, H05B 4102
Patent
active
043170676
ABSTRACT:
A discharge device (10) is disclosed which is capable of providing preionizing ultraviolet wave length photons to the area of a gap between the first (15) and second (35) electrodes of the device. The first electrode (15) includes a core (20) of dielectric material, a conductive plate (23) mounted on one surface of the core, and a conductive grid (26) mounted on an opposed surface of the core which faces the second electrode. The application of a negative voltage pulse to the grid (26), while the plate (23) is maintained at substantially ground potential, causes electrons to discharge between the conductors of the grid and the adjacent surface of the dielectric core, and, in doing so, generates photons having wavelengths in the ultraviolet range. The ultraviolet photons, which are emanated in a two dimensionally uniform pattern over the surface of the dielectric core adjacent the grid, cause ionization of the gas within the main discharge gap between the first and second electrodes. The second electrode may be maintained at ground or other potential higher than the grid such that a sufficient potential difference reached between the second electrode and the grid after the preionization will result in a uniform glow discharge of electrons between the two electrodes. This glow discharge is useful for the firing of gas lasers and in certain chemical reactors, such as ozone generators.
REFERENCES:
patent: 3688151 (1972-08-01), Jansen et al.
patent: 3743881 (1973-07-01), Blaszuk
patent: 4104693 (1978-08-01), Toda et al.
patent: 4114113 (1978-09-01), Hasson et al.
Fitzsimmons William A.
Rosocha Louis A.
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