LIGHTING METHOD FOR HOT CATHODE TYPE LOW-PRESSURE RARE GAS DISCHARGE LAMP

PURPOSE:To obtain uniform brightness distribution with high brightness by lighting a discharge lamp with a DC current. CONSTITUTION:When a bulb 1 constituted of phosphors 2, a reflecting film 3, electrodes 4 and a slit 5 is lighted with a DC current, the maximum brightness is higher by 10% or above...

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Bibliographische Detailangaben
Hauptverfasser:	MURAKAMI KATSUO, MIHASHI SEIJIYUROU, OSAWA TAKASHI, KOBAYASHI TOSHIHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	PURPOSE:To obtain uniform brightness distribution with high brightness by lighting a discharge lamp with a DC current. CONSTITUTION:When a bulb 1 constituted of phosphors 2, a reflecting film 3, electrodes 4 and a slit 5 is lighted with a DC current, the maximum brightness is higher by 10% or above than that of the bulb 1 lighted with an AC current in the area where the current is limited to the amount which normally causes no heating problem. No cataphoresis phenomenon occurs even when the bulb 1 is lighted for a long period. Uniform brightness distribution is obtained with high brightness. The lamp voltage is somewhat increased, but the lamp voltage of a discharge lamp is low, thus there is no danger in handling the lamp.