High-frequency excitation point light source lamp device
AssigneeUshiodenki Kabushiki Kaisha
InventorsMitsuru Ikeuchi, Yukiharu Tagawa, Hiroyuki Fujii
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Abstract
To provide a lamp device that is a point light source, that withstands high pressure, and that produces high-intensity light, a high-frequency excitation point light source lamp device has been devised having a discharge vessel made of a transparent, non-conductive material and having an expanded part forming a discharge space and with tubules joined to the expanded part; at least one discharge concentrator, that concentrates the electrical field within the discharge space of the expanded part, which is supported in a tubule with an end within the discharge space; and a high-frequency supply external to the lamp for providing excitation energy that excites a discharge of the concentrator.
Claims18
A high-frequency excitation point light source lamp device comprising:
- a discharge vessel made of a transparent, non-conductive material which includes an expanded part enclosing a discharge space and at least one tubule joined to the expanded part;
- at least one discharge concentrator within the discharge vessel that concentrates an electrical field within the discharge space of the expanded part, wherein the at least one discharge concentrator is supported by the at least one tubule and has a tip within the expanded part of the discharge space;
- and
- a means, external to the lamp, for supplying high-frequency excitation energy that excites a discharge of the at least one discharge concentrator.
Dependencies are inferred from the claim text.