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U.S. Department of Energy
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Method of making a cold cathode gas laser discharge tube

Patent ·
OSTI ID:7318166
Use of press-molded flanged glass envelope members each including a central hollow cylindrical portion enables fabrication of high output cold cathode gas laser tubes of reduced axial length with reduced cost of production. The cylindrical portion of one of the envelope members surrounds one end region of the capillary tube to prevent discharge concentration on the adjacent end region of the cylindrical cold cathode while that of the other envelope member serves to support the capillary tube at about the middle of its axial length, eliminating the need for a ''flaring operation'' requiring highly skilled labor.
Assignee:
Nippon Electric Co.
Patent Number(s):
US 4012214
OSTI ID:
7318166
Country of Publication:
United States
Language:
English

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