Termination fixture for an electrodeless lamp
AssigneeGTE Laboratories Incorporated
InventorsPaul Osborne Haugsjaa, William Henry McNeill, Robert James Regan, Joseph Martin Lech
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Abstract
An improved termination fixture for an electrodeless light source matches the complex impedance of an electrodeless lamp during excitation to the output impedance of a high frequency power source coupled to the fixture. The inner conductor of the fixture has a first and a second section. The dimensions of the first section are such as to produce an input impedance whose reactive impedance part is much smaller than the reactive impedance part of the lamp impedance. The dimensions of the second section are such as to match the input impedance to the source output impedance.
Claims10
A light source including,
- a. a source of power at a high frequency,
- b. an electrodeless lamp having an envelope made of a light transmitting substance, the envelope enclosing a volatile fill material which emits light upon breakdown and excitation, the lamp having a complex impedance in the operating condition;
- and
- c. a termination fixture coupled to the source, the fixture having an inner conductor and an outer conductor disposed around the inner conductor, the conductors, having a first end which couples power to the lamp and a second end which is coupled to the source, the fixture having at least first and second sections of different values of characteristic impedance, the values of characteristic impedance and the lengths of the sections being selected to match the complex impedance of the lamp in the operating condition to the output impedance of the source.
Dependencies are inferred from the claim text.