Electrodeless high intensity discharge lamp with split lamp stem

Details Electrodeless high intensity discharge lamp with split lamp stem Electrodeless high intensity discharge lamp with split lamp stem

1996-07-11

1998-12-01

Lee, Benny T.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

315344, 313161, 313634, H01J 6504

Patent

active

058443762

ABSTRACT:
An electrodeless lamp capsule includes a light-transmissive discharge envelope enclosing a discharge volume containing a mixture of starting gas and chemical dopant material excitable by high frequency power to a state of luminous emission, and a lamp stem attached to the discharge envelope. The lamp stem includes a first section having a first cross-sectional area and a second section attached to the discharge envelope. The second section of the lamp stem has a second cross-sectional area that is less than the first cross-sectional area. The lamp stem may be a tube having a longitudinal slot which defines spaced-apart, first and second elements that are attached to the discharge envelope. The first and second elements have a relatively small total cross-sectional area for conducting heat from the discharge envelope and permit secure attachment of the lamp stem to the discharge envelope.

REFERENCES:
patent: 4673846 (1987-06-01), Yoshizawa et al.
patent: 4947080 (1990-08-01), Wood et al.
patent: 4954756 (1990-09-01), Wood et al.
patent: 5070277 (1991-12-01), Lapatovich
patent: 5113121 (1992-05-01), Lapatovich et al.
patent: 5130612 (1992-07-01), Lapatovich et al.
patent: 5144206 (1992-09-01), Butler et al.
patent: 5241246 (1993-08-01), Lapatovich et al.
patent: 5373216 (1994-12-01), Dakin et al.

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