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US 9,177,779 B1Granted
Low profile electrodeless lamps with an externally-grounded probe
AssigneeTopanga USA, Inc.
InventorsTimothy J. Brockett, Mehran Matloubian
Life of this patent
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Abstract
An electrode-less plasma lamps, comprising generally of a bulb containing a gas-fill that is excited to produce light using radio-frequency (RF) energy. In specific embodiments, the use of grounded coupling-elements with integrated bulb assemblies simplifies manufacturability, improves resonant frequency control, and enables the use of solid, partially filled, and hollow lamp bodies. In an example, the lamp is configured with an rf feed that is substantially normal to a direction of the bulb and associated support member.
Claims29
A plasma lamp apparatus comprising:
- a shaped housing member having an interior region, and an exterior region coupled to a base region and a top region;
- a support member configured within the interior region of the cylindrical housing member and in parallel alignment with the exterior region, the support member having a first end and a second end, the second end being configured to the base region;
- a bulb configured on the first end of the support member, the bulb comprising a fill material;
- a feed structure, having a first end and a second end, the first end being substantially perpendicular to the support structure, and the second end being configured in substantially parallel alignment to the support member;
- and
- an RF source coupled to the feed structure and configured to cause electromagnetic coupling between the feed structure and the support member to output electromagnetic radiation.
3 more elements
Dependencies are inferred from the claim text.