RARE GAS DISCHARGE LAMP

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PURPOSE : A rear gas discharging lamp is provided to prevent the amount of light around a conductive material layer from being reduced by installing an external electrode on the corresponding position of a glass bulb. CONSTITUTION : A rear gas is sealed in a glass bulb(11). Electrodes(13, 14) are formed on both ends of the glass bulb. An external electrode is formed on the corresponding position of the external surface of the glass bulb based on the central shaft of a lamp. A fluorescent substance layer(12) is formed over the inner surface of the glass bulb. A first conductive material layer(15) is formed over the corresponding region of both electrodes and a space between the electrodes.