Gas laser having improved stability against environmental conditions
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United States of America Patent
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Sep 28, 1982
Grant Date -
N/A
app pub date -
Jul 18, 1980
filing date -
Jul 18, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The laser is an internal mirror hermetically sealed design, utilizing an envelope made principally of glass. The effects of thermally produced distortion on mirror alignment are minimized by providing a thermally and electrically conductive liner in close contact with the envelope wall. Misalignment of the discharge-confining capillary tube is minimized by supporting its inner end by means of a concentric stiff but resilient spring, thus avoiding an unsupported cantilevered section of the capillary. Reliable starting even in environments where the ambient electromagnetic radiation is inadequate for gas ionization is secured by providing a radioactive source in the region of the anode electrode.
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