One piece microwave container screens for electrodeless lamps

Patent · Wed Dec 31 23:00:00 EST 1997

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

/315/
assembly
bounded
bulb
cavity
chamber
chamber defined
clamp
compliant
configurations
container
defined
defined therein
discharge
disposed
easily
electrodeless
electrodeless lamp
emitted
energy
engaging
entering
envelope
fingers
flange
illumination
improved
improved screen
interchanged
internal
internal reflector
lamp
lamp assembly
lamps
leakage
light
light emitted
light-transmitting
light-transmitting chamber
material
mesh
metal
metal material
microwave
microwave cavity
microwave energy
microwave power
microwave powered
multiple
patterns
periphery
piece
portion
powered
powered electrodeless
prevented
produce
reduces
reflect
reflect light
reflector
replacing
respective
screen
screen unit
screens
section
sections
secure
significantly
significantly reduce
significantly reduces
solid
solid metal
solid section
solid sections
therein
type
unit
units
wave cavity
wave energy
waveguide