Electrode-less fluorescent lamp having a 3-dimensional...

Details Electrode-less fluorescent lamp having a 3-dimensional... Electrode-less fluorescent lamp having a 3-dimensional...

2006-05-02

2006-05-02

Vo, Tuyet Thi (Department: 2821)

Electric lamp and discharge devices

With support and/or spacing structure for electrode and/or...

For plural electrodes of discharge device

C313S261000, C313S161000, C313S018000, C315S248000, C315S267000

Reexamination Certificate

active

07038365

ABSTRACT:
An electrode-less fluorescent lamp and a method for manufacturing the same are disclosed. The electrode-less fluorescent lamp includes a closed-loop tubular discharge tube enclosing a discharge gas. The tube is coated with a fluorescent layer on an inner surface and is made of a light-transmissive material. The lamp also includes at least one core surrounding at least a portion of the discharge tube. The lamp includes at least one coil wound around the at least one core. The coil supplies electromagnetic power to the discharge tube by producing a time-varying magnetic field in the core. In addition, the lamp includes a radio frequency (RF) power source supplying RF power to the coil so that discharge generated in the discharge tube is maintained by said RF power.

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patent: WO 97/10610 (1997-03-01), None

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