Cathode structure for a cathode ray tube
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United States of America Patent
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Feb 22, 1994
Grant Date -
N/A
app pub date -
Dec 17, 1991
filing date -
Dec 24, 1990
priority date (Note) -
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status (Latency Note)
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Abstract
A cathode structure for supporting a cathode sleeve of a cathode ray tube includes a plurality of metal ribbons for supporting the cathode sleeve, where one end of a ribbon is fixed to an upper end of the cathode sleeve and the other end of the same ribbon is fixed to an upper end of a cathode holder, that allows thermal expansion of the cathode sleeve to occur towards the cathode holder, and maintain a constant distance between a cathode cup on the cathode sleeve and a first electrode of an electron gun.
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