Patent ID: 9022597
Filing Date: 2015-05-05
Classification: F21S,F21V,F21Y,G01N,Y10T

Abstract:
1. A line light irradiation device comprising: an integrally molded casing having a bottom wall part extending in a longitudinal direction and a pair of side wall parts extending upward from both sides in the longitudinal direction of the bottom wall part; an LED substrate provided on the bottom wall part of the casing; a rod-shaped lens provided above the LED substrate along the longitudinal direction inside the casing; and a fixing mechanism for fixing the lens to the pair of side wall parts, wherein the fixing mechanism comprises: a respective upwardly facing surface extending in the longitudinal direction along an inner surface of each of the side wall parts; a respective downwardly facing surface extending in the longitudinal direction along each side peripheral surface of the lens; a respective concave groove extending along the longitudinal direction above the upwardly facing surface on the inner surface of each of the side wall parts; and a respective elastic body detachably provided in each concave groove and fitting into each concave groove to be in contact with a corresponding side peripheral surface of the lens in a state that the downwardly facing surfaces are in contact with the upwardly facing surfaces to thereby press the downwardly facing surfaces against the upwardly facing surfaces.