Jacketed lamp bulb envelope

Patent · Mon Jan 01 00:00:00 EST 2001

OSTI ID:874096

MacLennan, Donald A ^[1]; Turner, Brian P ^[2]; Gitsevich, Aleksandr ^[1]; Bass, Gary K ^[3]; Dolan, James T ^[4]; Kipling, Kent ^[1]; Kirkpatrick, Douglas A ^[5]; Leng, Yongzhang ^[2]; Levin, Izrail ^[6]; Roy, Robert J ^[4]; Shanks, Bruce ^[1]; Smith, Malcolm ^[7]; Trimble, William C ^[8]; Tsai, Peter ^[9]

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1. Gaithersburg, MD
2. Damascus, MD
3. Mt. Airy, MD
4. Frederick, MD
5. Great Falls, VA
6. Silver Spring, MD
7. Alexandria, VA
8. Columbia, MD
9. Olney, MD

A jacketed lamp bulb envelope includes a ceramic cup having an open end and a partially closed end, the partially closed end defining an aperture, a lamp bulb positioned inside the ceramic cup abutting the aperture, and a reflective ceramic material at least partially covering a portion of the bulb not abutting the aperture. The reflective ceramic material may substantially fill an interior volume of the ceramic cup not occupied by the bulb. The ceramic cup may include a structural feature for aiding in alignment of the jacketed lamp bulb envelope in a lamp. The ceramic cup may include an external flange about a periphery thereof. One example of a jacketed lamp bulb envelope includes a ceramic cup having an open end and a closed end, a ceramic washer covering the open end of the ceramic cup, the washer defining an aperture therethrough, a lamp bulb positioned inside the ceramic cup abutting the aperture, and a reflective ceramic material filling an interior volume of the ceramic cup not occupied by the bulb. A method of packing a jacketed lamp bulb envelope of the type comprising a ceramic cup with a lamp bulb disposed therein includes the steps of filling the ceramic cup with a flowable slurry of reflective material, and applying centrifugal force to the cup to pack the reflective material therein.

• Research Organization: FUSION LIGHTING INC
• DOE Contract Number: FC01-97EE23776
• Assignee: Fusion Lighting, Inc. (Rockville, MD)
• Patent Number(s): US 6310443
• OSTI ID: 874096
• Country of Publication: United States
• Language: English

Related Subjects

jacketed
lamp
bulb
envelope
ceramic
cup
partially
closed
defining
aperture
positioned
inside
abutting
reflective
material
covering
portion
substantially
fill
interior
volume
occupied
structural
feature
aiding
alignment
external
flange
periphery
example
washer
therethrough
filling
method
packing
type
comprising
disposed
steps
flowable
slurry
applying
centrifugal
force
pack
ceramic material
centrifugal force
positioned inside
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