Line light irradiation device and manufacturing method thereof
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United States of America Patent
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May 5, 2015
Grant Date -
Dec 12, 2013
app pub date -
Feb 16, 2012
filing date -
Mar 4, 2011
priority date (Note) -
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Abstract
The present invention includes: a casing having a bottom wall part and a pair of side wall parts extending upward from this bottom wall part; a rod-shaped lens provided above an LED substrate and along a longitudinal direction inside the casing; and a fixing mechanism for fixing the lens to the pair of side wall parts. The fixing mechanism includes: upwardly facing surfaces longitudinally extending along an inner surface of the side wall parts; downwardly facing surfaces longitudinally extending along side peripheral surfaces of the lens; a concave groove longitudinally extending above the upwardly facing surface on the inner surface of each of the side wall parts; and elastic bodies fitting into the concave grooves to be in contact with the side peripheral surfaces of the lens in a state that the downwardly facing surfaces are in contact with the upwardly facing surfaces.
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