Gas laser device
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United States of America Patent
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Nov 22, 2016
Grant Date -
Dec 10, 2015
app pub date -
Mar 6, 2014
filing date -
Mar 26, 2013
priority date (Note) -
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Abstract
A gas laser device includes a housing for enclosing a laser gas. The housing includes a main body having a frame-like structure with openings formed on both sides thereof, and a pair of cover members detachably attached to cover each of the openings. The main body is provided with an upper plate and a lower plate each extending along the optical axis of the laser light, and a pair of side plates respectively connecting both ends of the upper plate and the lower plate. Each of the cover members includes a partially cylindrical member having an arc-like cross-sectional shape in a plane perpendicular to the optical axis and extending along the optical axis, and a pair of side wall members occluding both ends of the partially cylindrical member. The partially cylindrical member has a bellows portion molded into a shape having peaks and valleys each alternating along the optical axis.
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