`Amendment Dated: March 16, 2015
`Reply to Office Action of: January 5, 2015
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`of a flash discharge tube, comprising;
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`an internal electrode led into the glass bulb;
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`MAT—10537US
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`a sintered electrode structure connected to a top end of the internal electrode,
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`with an external diameter equal to or smaller thanan external diameter of the internal
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`electrode; and
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`a projection made of a high—melting—point metal, provided so as to partially
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`project from a top end face of the sintered electrode structure,
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`wherein the internal electrode and the projection are separated via the sintered
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`electrode structure,
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`wherein the sintered electrode structure has holes, the diameter of the holes
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`being distributed between 0.75 to 2.70 um and cesium compound being impregnated
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`in the holes, and
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`wherein the projection occupies a part of a face of the top end of the sintered
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`' electrode and the projection projects to a thickness of 0.1 to 0.3 mm from the top end
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`face of the sintered electrode.
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