Ultra violet ray generator by means of microwave excitation

Details Ultra violet ray generator by means of microwave excitation Ultra violet ray generator by means of microwave excitation

1988-08-04

1990-05-22

Mis, David

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

315 39, 313113, H05B 4124

Patent

active

049280406

ABSTRACT:
A microwave generator for generating microwaves, a microwave cavity connected with the microwave generator, and a UV lamp disposed in the microwave cavity. A UV reflector is detachably secured near the UV lamp in the microwave cavity, the reflector consisting of a light-transmitting base and an interference film thereon, having a thickness of 2 to 2.2 microns, and the interference film being formed by vacuum-evaporating a first layer of zirconium oxide on the base, and subsequently the second layer of silicon oxide on the first layer, and repeating the vacuum evaporations. The UV reflector can be detached from the generator without changing the capacity of the microwave cavity, and thus becoming changable of only the directions or configurations of the UV without changing microwave efficiency of the microwave cavity, and furthermore, the generator can obtain the UV of low temperature, exclusive of infra red rays originally included in the UV.

REFERENCES:
patent: 4001632 (1977-01-01), Haugsjaa et al.
patent: 4223250 (1980-09-01), Kramer et al.

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