The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 2002
Filed:
Jul. 20, 2000
Ushiodenki Kabushiki Kaisha, Tokyo, JP;
Abstract
Dielectric-barrier discharge lamp light source equipment having a plurality of dielectric-barrier discharge lamps (B), each of which has a discharge plasma space (G) filled with a discharge gas in which a dielectric-barrier discharge will produce excimer molecules and a dielectric (D) located between the discharge gas and at least one of two electrodes (E) to induce the discharge phenomenon in the discharge gas, and also a power supply to impress a high voltage on the electrodes (E) of the dielectric-barrier discharge lamps, in which the power supply means is divided into a single power supply front stage (M) and multiple power supply back stages (S), one for each of the dielectric-barrier discharge lamps (B), with the power supply front stage (M) providing a common direct current power supply voltage ( ) to each of the power supply back stages (S) and each of the power supply back stages (S) transforming the direct current power supply voltage ( ) to an alternating current high voltage (H) of roughly periodic waveform via a switching element and a step-up transformer (T), and impressing that alternating current high voltage (H) on the electrodes (E) of the corresponding dielectric-barrier discharge lamps (B), such that the frequency of the alternating current high voltage (H) of each of the power supply back stages (S) is independently adjustable and the common direct current power supply voltage ( ) of the power supply front stage (M) is adjustable.