Gas discharge lamp temperature control

Details Gas discharge lamp temperature control Gas discharge lamp temperature control

1991-12-09

1993-09-14

Yusko, Donald J.

Electric lamp and discharge devices

With temperature modifier

Electric heater

313 13, 313 25, 313 44, 313 46, 313610, 313634, H01J 6130, H01J 6152

Patent

active

052452468

ABSTRACT:
A low pressure gas discharge lamp of the capillary bore type is equipped with a temperature control system whereby the electrode containment section and the light output section of the lamp are at higher temperatures than the capillary bore section. Vapor flow from the higher temperature sections to the relatively low capillary bore section maintains a satisfactory vapor fill in the bore section for attainment of a high light output. In one arrangement, the temperature control system includes a heater and a heat sink at selected points along the lamp envelope. In another form of the invention, the control system is solely a heat sink in thermal contact with the capillary bore section.

REFERENCES:
patent: 3790852 (1974-02-01), Bolin et al.
patent: 4024431 (1977-05-01), Young
patent: 4877997 (1989-10-01), Fein
patent: 4965484 (1990-10-01), Fein
patent: 5055979 (1991-10-01), Boland et al.

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