Microwave excitation light-source device
AssigneeMitsubishi Electric Corporation
InventorsAkira Inoue, Seiro Yuge, Koji Ota, Akane Nomura
Life of this patent
Estimating the term…
Abstract
A microwave excitation light-source device includes: a center conductor extending in an axis direction; an annular conductor having light transparency and disposed concentrically with respect to the center conductor; and an arc tube in which a luminescent material is enclosed, the arc tube being disposed so as to extend along the axis direction in an annular space created between the center conductor and the annular conductor; wherein, with respect to the arc tube, in a plane that is perpendicular to the axis direction, a single closed curve drawn along a tube wall of the arc tube intersects zero or even number of times, every line drawn from the center conductor toward the annular conductor.
Claims19
A microwave excitation light-source device, comprising:
- a center conductor extending in an axis direction;
- an annular conductor having light transparency and disposed concentrically with respect to the center conductor;
- an arc tube in which a luminescent material is enclosed, said arc tube being disposed so as to extend along the axis direction in an annular space created between the center conductor and the annular conductor;
- and
- a support unit that supports the center conductor, the annular conductor and the arc tube and in which electrical connection paths for applying microwaves to the center conductor and the annular conductor are formed;
- wherein the arc tube is configured so that, in a plane that is perpendicular to the axis direction, a single closed curve drawn along a tube wall of the arc tube intersects zero or even number of times, every line drawn from the center conductor toward the annular conductor.
Dependencies are inferred from the claim text.