DISCHARGE LAMP LIGHTING DEVICE

Disclosed herein a discharge lamp lighting device capable of suppressing an occurrence of a flicker and obtaining a longer life till flicker even when the discharge lamp lights up for a long time. The device comprises a short arc type discharge lamp; a lighting circuit for supplying power to the dis...

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Bibliographic Details
Main Author KONO, YOICHI
Format Patent
LanguageEnglish
French
German
Published 28.10.2015
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Summary:Disclosed herein a discharge lamp lighting device capable of suppressing an occurrence of a flicker and obtaining a longer life till flicker even when the discharge lamp lights up for a long time. The device comprises a short arc type discharge lamp; a lighting circuit for supplying power to the discharge lamp; and a controller for controlling the lighting circuit. The discharge lamp has: an arc tube; an anode and a cathode disposed in the arc tube with the anode and the cathode facing each other; and a xenon gas enclosed in the arc tube, and the cathode includes an electron emissive material and a carbon component. The controller includes a short time lighting circuit for carrying out a short time lighting operation that lights up the discharge lamp at least once in a short time during an idle period in which the discharge lamp does not constantly light up.
Bibliography:Application Number: EP20130864913