Glow discharge lamp with auxiliary electrode for mounting getter

Electric lamp and discharge devices – With getter – Electrode includes getter – supports getter – or is connected...

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Details

313549, 313562, H01J 1724, H01J 6126

Patent

active

052392295

ABSTRACT:
A glow discharge lamp that includes a light transmitting envelope containing a noble gas fill material and a pair of electrodes disposed in the envelope. Lead-in wires couple to the electrodes and extend to and are hermetically sealed in the envelope. The electrodes include an anode electrode and a cathode electrode. A getter material is disposed on an auxiliary electrode. The getter material is maintained at an elevated temperature by virtue of a continuous lamp discharge to thus maintain chemical pumping in the envelope for the absorption of residual envelope gases.

REFERENCES:
patent: 2341990 (1944-02-01), Inmana et al.
patent: 4117369 (1978-09-01), Kuus et al.

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