| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an artificial sunlight irradiation apparatus which is capable of emitting artificial sunlight of which the illuminance is less varied locally on an irradiated surface. <P>SOLUTION: A light guide member of the artificial sunlight irradiation apparatus comprises eight light guide plates WG1' to WG8' arrayed in one direction. A light diffusion part comprising a plurality of dot-like projections 701 and 702 is formed on a surface opposite to an irradiated surface of each of the light guide plates WG1' to WG8'. A dot diameter of the dot-like projections 701 on light guide plates WG1' and WG8' located at ends in the one direction perpendicular to a light guide direction of the light guide plates WG1' to WG8' is made larger than that of the dot-like projections 702 on wave guide plates WG2' to WG7' located in a center other than the ends in the one direction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
