Electric lamp and discharge devices – With support and/or spacing structure for electrode and/or... – For plural electrodes of discharge device
Patent
1978-05-01
1979-05-29
Rolinec, Rudolph V.
Electric lamp and discharge devices
With support and/or spacing structure for electrode and/or...
For plural electrodes of discharge device
313227, H01J 6130
Patent
active
041568265
ABSTRACT:
A mercury arc lamp envelope is made of high purity synthetic fused silica which contains total metallic impurities of less than one part per million by weight and OH radical content of less than five parts per million by weight. Lamps having envelopes made from this material show little or no devitrification after 1000 hours of operation.
REFERENCES:
"Fused Quartz Catalog," General Electric Company, Sections IIa and IIC3.
Bruestle Glenn H.
Coughlin Jr. Vincent J.
Hostetter Darwin R.
RCA Corporation
Rolinec Rudolph V.
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