| 摘要 |
<P>PROBLEM TO BE SOLVED: To homogenize the amount of a radiant luminous flux over the whole length which has been more in the vicinity of the light source and has become less accordingly as it goes away from the light source in a lighting fixture in which the light source is placed at the end part of a cylindrical body, and in which the inner face is made to have a mirror face, and in which a slit is installed in the longitudinal direction, and in which light is emitted in a long range while utilizing reflection of the inner face. <P>SOLUTION: In the inner part of the cylindrical body, a diffusion reflecting plate which is extended in the longitudinal direction of the cylindrical body and which is perpendicular to the slit and a diffusion reflecting plate which extends in the longitudinal direction and which is in parallel with the slit are placed. The amount of the radiant luminous flux emitted from the slit to the outside is homogenized by decreasing it in the vicinity of the light source and by increasing it in a position away from the light source. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
