Lamp bulb with integral reflector
Abstract
An improved electrodeless discharge lamp bulb includes an integral ceramic reflector as a portion of the bulb envelope. The bulb envelope further includes two pieces, a reflector portion or segment is cast quartz ceramic and a light transmissive portion is a clear fused silica. In one embodiment, the cast quartz ceramic segment includes heat sink fins or stubs providing an increased outside surface area to dissipate internal heat. In another embodiment, the quartz ceramic segment includes an outside surface fused to eliminate gas permeation by polishing.
- Inventors:
-
- Silver Spring, MD
- Gaithersburg, MD
- Wheaton, MD
- Publication Date:
- Research Org.:
- Fusion Lighting, Inc., Rockville, MD (United States)
- OSTI Identifier:
- 873528
- Patent Number(s):
- US 6181054
- Assignee:
- Fusion Lighting, Inc. (Rockville, MD)
- DOE Contract Number:
- FG01-95EE23796
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- lamp; bulb; integral; reflector; improved; electrodeless; discharge; ceramic; portion; envelope; pieces; segment; cast; quartz; light; transmissive; fused; silica; embodiment; heat; sink; fins; stubs; providing; increased; outside; surface; dissipate; internal; eliminate; gas; permeation; polishing; fused silica; outside surface; discharge lamp; heat sink; light transmissive; ceramic segment; improved electrode; internal heat; bulb envelope; lamp bulb; electrodeless discharge; /313/
Citation Formats
Levin, Izrail, Shanks, Bruce, and Sumner, Thomas L. Lamp bulb with integral reflector. United States: N. p., 2001.
Web.
Levin, Izrail, Shanks, Bruce, & Sumner, Thomas L. Lamp bulb with integral reflector. United States.
Levin, Izrail, Shanks, Bruce, and Sumner, Thomas L. 2001.
"Lamp bulb with integral reflector". United States. https://www.osti.gov/servlets/purl/873528.
@article{osti_873528,
title = {Lamp bulb with integral reflector},
author = {Levin, Izrail and Shanks, Bruce and Sumner, Thomas L},
abstractNote = {An improved electrodeless discharge lamp bulb includes an integral ceramic reflector as a portion of the bulb envelope. The bulb envelope further includes two pieces, a reflector portion or segment is cast quartz ceramic and a light transmissive portion is a clear fused silica. In one embodiment, the cast quartz ceramic segment includes heat sink fins or stubs providing an increased outside surface area to dissipate internal heat. In another embodiment, the quartz ceramic segment includes an outside surface fused to eliminate gas permeation by polishing.},
doi = {},
url = {https://www.osti.gov/biblio/873528},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}
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