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Title: 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:
 [1];  [2];  [3]
  1. (Silver Spring, MD)
  2. (Gaithersburg, MD)
  3. (Wheaton, MD)
Issue Date:
Research Org.:
Fusion Lighting, Inc., Rockville, MD (United States)
OSTI Identifier:
873528
Patent Number(s):
6181054
Assignee:
Fusion Lighting, Inc. (Rockville, MD) HQPR
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. Mon . "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 = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

Patent:

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