Electric lamp or space discharge component or device manufacturi – Process – Combined – e.g. – with shaping of lamp or device envelope
Patent
1986-06-19
1988-07-12
DeMeo, Palmer C.
Electric lamp or space discharge component or device manufacturi
Process
Combined, e.g., with shaping of lamp or device envelope
313569, 313579, 313634, 445 27, H01J 6133, H01J 934, H01J 926
Patent
active
047567015
ABSTRACT:
Incandescent lamps having an improved light source are disclosed. The light source contains a halogen compound along with a fill-gas at a pressure above atmospheric. The light source has an oblate ellipsoidal shape so as to obtain a desired temperature gradient which reduces typically experienced "cold spots" that detrimentally contribute to the condensation of halogen compounds within the light source which would otherwise reduce the desired light output of the light source throughout life. Also disclosed is a method of manufacturing the light source.
REFERENCES:
patent: 4331901 (1982-05-01), de Vrijer et al.
patent: 4434386 (1984-02-01), Lowe
patent: 4535269 (1985-08-01), Tschetter et al.
Danko George K.
Olwert Ronald J.
DeMeo Palmer C.
General Electric Company
Jacob Fred
McMahon John P.
Schlamp Philip L.
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