Electrodeless lamp with sealed ceramic reflecting housing
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United States of America Patent
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-
Jul 24, 2001
Grant Date -
N/A
app pub date -
Jun 3, 1999
filing date -
Dec 20, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electrodeless lamp (10) for producing an intense beam of light includes a concave lamp body (11) that surrounds the lamp interior. A gas, such as sulfur or selenium or compounds thereof, is contained within the lamp body (11) for forming a plasma light source. The concave lamp body (11) has a reflecting surface (12). Electrodes (27, 28) are disposed external to the lamp body for producing radio frequency energy exciting the gas. A heat resistant glass plate (20) seals the concave lamp body (11). A frit seal (23) can be used for forming a pressure and temperature resistant seal between the concave lamp body (11) and the glass plate (20). The light beam generated by the plasma exists through the glass plate (20).
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