Electroless low-pressure discharge lamp

Details Electroless low-pressure discharge lamp Electroless low-pressure discharge lamp

1995-04-21

1996-11-05

O'Shea, Sandra L.

Electric lamp and discharge devices

With temperature modifier

Having heat conducting path

313 43, 313161, 313493, H01J 150

Patent

active

055720838

ABSTRACT:
The electrodeless low pressure discharge lamp has a lamp vessel (1) which is fused to the flared portion (6) of a flared tube (5) which extends into the lamp vessel. A power coupler (20) is demountably secured to the lamp vessel and comprises a soft magnetic core (21), surrounded by an electric coil (22), and a heat conducting element (23) in the core. This element is a solid rod, the coil (22) is present in a region (8) adjacent the flared portion (6) of the flared tube (5), and an elastic material couples the rod (23) laterally to the core (21). The construction of the lamp avoids the use of an expensive heat pipe as a heat conducting element.

REFERENCES:
patent: 3936686 (1976-02-01), Moore
patent: 4536675 (1985-08-01), Postma
patent: 4661746 (1987-04-01), Postma et al.
patent: 4728867 (1988-03-01), Postma et al.
patent: 4922157 (1990-05-01), Van Engen et al.
patent: 4927217 (1990-05-01), Kroes et al.
patent: 4977354 (1990-12-01), Bergervoet et al.
patent: 5006752 (1991-04-01), Eggink et al.
patent: 5130912 (1992-07-01), Friederichs et al.
patent: 5258683 (1993-11-01), Eggink et al.
patent: 5291091 (1994-03-01), Eggink et al.

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