| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED illumination signboard capable of preventing deterioration of display image quality, distortion, and breakage of a signboard due to variation of air temperature, and an LED surface lighting fixture used for the same. <P>SOLUTION: An illumination signboard comprises outer frames, a plurality of LED light sources 2 supported by the outer frames, and a plurality of light guide plates 3 propagating incident light of the LED light sources inside and emitting from an emission surface, and imparts illumination to a raw material forming an image on an emission surface of the light guide plates. A U-shaped LED light source housing member 4 is provided in a groove so as to be slidable in the depth direction of the groove by an elastic body 5, and a light source housing member mounting frame 1A for pressing and fixing the light guide plates 3 by the LED light source housing member 4 is used for at least one of the outer frames. <P>COPYRIGHT: (C)2012,JPO&INPIT |
