04910439 is referenced by 22 patents and cites 18 patents.

A high intensity discharge electrodeless lamp having a segmented excitation coil and capacitor configuration offers minimum light obstruction and RF losses while providing maximum impedance matching and heat transfer from the coil to a heat sink. The excitation coil includes at least two pairs of interconnected windings, each pair disposed concentrically in its own plane. The windings are clustered in a toroidal shape, the center of which is positioned to surround the arc envelope of a high intensity discharge lamp containing an ionizable gas activatable by RF energy. The coil windings are of large cross-sectional area and the capacitors have short leads, so as to minimize EMI and power losses and facilitate heat condition to heat sink means. The windings are configured to follow the contours of the magnetic field lines created by current flow through the total coil.

Title
Luminaire configuration for electrodeless high intensity discharge lamp
Application Number
7/134498
Publication Number
4910439
Application Date
December 17, 1987
Publication Date
March 20, 1990
Inventor
John M Anderson
Scotia
NY, US
Sayed Amr El Hamamsy
Schenectady
NY, US
Agent
James C Davis Jr
Marvin Snyder
Assignee
General Electric Company
NY, US
IPC
H05B 41/16
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