Electrodeless low-pressure mercury vapor discharge lamp

Details Electrodeless low-pressure mercury vapor discharge lamp Electrodeless low-pressure mercury vapor discharge lamp

1990-08-14

1992-04-14

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313486, 313485, H01J 162

Patent

active

051051222

ABSTRACT:
An electrodeless low-pressure mercury vapour discharge lamp having a discharge vessel with a radiation transmitting envelope and a cavity, which cavity accommodates a core of magnetic material and a wire winding surrounding said core and connected to a high-frequency supply unit. The envelope is provided with a first luminescent layer and the cavity with a second luminescent layer. Of the two or more luminescent materials present the luminescent material with the greatest depreciation is present exclusively in the first luminescent layer on the envelope.

REFERENCES:
patent: 3937998 (1976-02-01), Verstegen et al.
patent: 4010400 (1977-03-01), Hollister
patent: 4119889 (1978-10-01), Hollister
patent: 4298828 (1981-11-01), Justice et al.
patent: 4315198 (1982-02-01), Skwirut et al.
patent: 4751426 (1988-06-01), Hoffman
Patent Abstract of Japan, vol. 12, No. 285 (E-642) (3132), Apr. 8, 1988.

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