One piece microwave container screens for electrodeless lamps

Patent · Thu Jan 01 00:00:00 EST 1998

OSTI ID:871858

Turner, Brian ^[1]; Ury, Michael ^[2]

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1. Myersville, MD
2. Bethesda, MD

A microwave powered electrodeless lamp includes an improved screen unit having mesh and solid sections with an internal reflector to reflect light into a light-transmitting chamber defined in the lamp microwave cavity by the reflector and the mesh section. A discharge envelope of a bulb is disposed in the light-transmitting chamber. Light emitted from the envelope is prevented by the reflector from entering the cavity portion bounded by the solid section of the screen. Replacing mesh material by solid metal material as part of the screen unit significantly reduces leakage of microwave energy from the lamp. The solid section has multiple compliant fingers defined therein for engaging the periphery of a flange on the waveguide unit so that a hose clamp can easily secure the screen to the assembly. Screen units of this type having different mesh section configurations can be interchanged in the lamp assembly to produce different respective illumination patterns.

• Research Organization: Fusion Lighting, Inc., Rockville, MD (United States)
• DOE Contract Number: FG01-95EE23796
• Assignee: Fusion Lighting, Inc. (Rockville, MD)
• Patent Number(s): US 5811936
• OSTI ID: 871858
• Country of Publication: United States
• Language: English

Related Subjects

piece
microwave
container
screens
electrodeless
lamps
powered
lamp
improved
screen
unit
mesh
solid
sections
internal
reflector
reflect
light
light-transmitting
chamber
defined
cavity
section
discharge
envelope
bulb
disposed
emitted
prevented
entering
portion
bounded
replacing
material
metal
significantly
reduces
leakage
energy
multiple
compliant
fingers
therein
engaging
periphery
flange
waveguide
clamp
easily
secure
assembly
units
type
configurations
interchanged
produce
respective
illumination
patterns
reflect light
metal material
significantly reduce
electrodeless lamp
defined therein
microwave powered
microwave energy
microwave power
microwave cavity
light emitted
solid metal
chamber defined
wave energy
significantly reduces
solid section
screen unit
lamp assembly
light-transmitting chamber
powered electrodeless
solid sections
internal reflector
improved screen
wave cavity
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