| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent fluctuation of emitted illumination light with a simple structure, and to emit bright illumination light. <P>SOLUTION: This application provides this lighting system 1 which is provided with: a plurality of light sources 2 circumferential arranged at equal intervals; a first light guide member 3c guiding illumination light from the light sources 2; a drive means 3d rotating it around an axis; and a second light guide member 4 entering and guiding the illumination light emitted from an emission end 3a of the first light guide member 3c, and fixed with respect to the light sources 2; and is structured such that the emission end 3a of the first light guide member 3c and an incident end 4a of the second light guide member 4 have each an opening shape of a nearly regular polygonal shape using the axis C as the center of gravity, and the second light guide member 4 is arranged in a positional relationship with respect to the light sources 2 where an angular position of the first light guide member 3c setting the luminous energy of the illumination light from the emission end 3a at the minimum value is not coincident with an angular position of the first light guide member 3c setting an overlapping area of the opening shape of the emission end 3a and the opening shape of the incident end 4a at the minimum value. <P>COPYRIGHT: (C)2009,JPO&INPIT |
