Discharge lamp circuit heat-sinked to the lamp cap

Details Discharge lamp circuit heat-sinked to the lamp cap Discharge lamp circuit heat-sinked to the lamp cap

1986-05-13

1987-02-17

Dority, Jr., Carroll B.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Load device temperature-modifying means combined with or...

313 17, 313 25, H01J 1728

Patent

active

046442260

ABSTRACT:
A high-pressure discharge lamp comprising a discharge vessel (3) enclosed by an outer envelope (1) provided with a neck (10) which is adjoined by a sleeve (20) of a lamp cap (2). The lamp cap (2) accommodates an electrical circuit provided with a semiconductor switching element (26) which controls the discharge current in the operating condition of the lamp. The semiconductor switching element (26) is provided with a cooling member (24) which is preferably secured to the sleeve (20). This lamp may be used without further expedients in combination with a stabilization ballast not adapted to the lamp.

REFERENCES:
patent: 4061939 (1977-12-01), Strok
patent: 4503358 (1985-03-01), Kamei et al.
patent: 4570105 (1986-02-01), Engel

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