Gas discharge lamp with movable external heat shield

Details Gas discharge lamp with movable external heat shield Gas discharge lamp with movable external heat shield

H - Electricity

01

J

313/6

H01J 61/52 (2006.01) H01J 61/04 (2006.01)

Patent

CA 1055098

ABSTRACT: The invention relates to a gas- and/or vapour discharge lamp which is provided with a discharge tube and with a heat shield. According to the invention the heat shield is connected to a bimetal element of the lamp such that, when the temperature of the discharge tube is raised (or lowered respectively) the heat shield is further removed from (or moved to respectively) the discharge tube, which results in that the lamp reaches its operating condition rapidily after starting and that furthermore in the operating condition fluctua- tions in the temperature of the coldest spot are only very small.

247470

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