High-pressure discharge lamp

Details High-pressure discharge lamp High-pressure discharge lamp

1985-04-22

1987-02-17

Levy, Stewart J.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313 27, H01J 6152, H01K 158

Patent

active

046442162

ABSTRACT:
In a high-pressure discharge lamp having a straight tubular intermediate part (10) of quartz, glass or another material of poor thermal conduction arranged between the outer bulb (4) and the lamp base (7), the intermediate part is folded into the shape of a bellow. With respect to a cylindrical intermediate part, the length of the lamp is thus decreased.

REFERENCES:
patent: 1145837 (1915-07-01), Hoff
patent: 1171509 (1916-02-01), Essich
patent: 2103028 (1937-12-01), Bol
patent: 2175361 (1939-10-01), Reger et al.
patent: 4410828 (1983-10-01), Ernest

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