Electric lamp and discharge devices – With support and/or spacing structure for electrode and/or... – For plural electrodes of discharge device
Patent
1977-02-03
1978-06-06
Rolinec, Rudolph V.
Electric lamp and discharge devices
With support and/or spacing structure for electrode and/or...
For plural electrodes of discharge device
313187, 313490, H01J 6118
Patent
active
040938891
ABSTRACT:
A low-pressure mercury vapor discharge lamp, having a discharge space containing thermally emitting electrodes and a mercury amalgam which is composed of mercury, bismuth, tin and lead.
This amalgam causes the mercury vapor pressure to remain stable at the value of 6 .times. 10.sup.-3 torr which is the optimum value for the conversion of electric energy into ultraviolet radiation over a wide temperature range. In addition, the mercury vapor pressure at room temperature is still sufficiently high to ensure rapid starting.
REFERENCES:
patent: 3521110 (1970-07-01), Johnson
Bloem Jan
Bouwknegt Albert
Hostetter Darwin R.
Rolinec Rudolph V.
Smith Robert S.
Trifari Frank R.
U.S. Philips Corporation
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