Convectively cooled ceramic lamp base

Details Convectively cooled ceramic lamp base Convectively cooled ceramic lamp base

1987-12-07

1988-07-19

DeMeo, Palmer C.

Electric lamp and discharge devices

With temperature modifier

For lead-in-seal or stem protection

313318, 313579, H01K 128, H01K 158

Patent

active

047587601

ABSTRACT:
A ceramic base for a tungsten halogen lamp has a bottom wall for supporting contact pins connected to respective lead-in wires sealed in the press-sealed end of the lamp. The base furthermore has a side wall integral with the bottom wall and at least one hole therein for receiving the press-sealed end of the envelope. The ceramic base side wall has convective vent passages including at least a first vent passage for inlet of cool air to the air space about the press-sealed end of the lamp, and at least a second vent passage for outlet of warmed air therefrom to thereby provide convective air cooling of the envelope press-sealed end.

REFERENCES:
patent: 3825785 (1974-07-01), Robinson
patent: 4568854 (1986-02-01), Westlund, Jr. et al.

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