| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light-emitting body capable of generating ring-shaped light with uniform brightness. <P>SOLUTION: In the ring-shaped light-emitting body provided with a ring-shaped light guide body having an emitting face continuous along an extension direction, a light guide path continuously connected to a part of the outer periphery of the ring-shaped light guide body for guiding the light of the light source to it, the outer periphery of the ring-shaped light guide body is to be round except for a light-incident part. An inner periphery of the ring-shaped light guide body is also to be round. The center of the inner periphery of the ring-shaped light guide body is positioned nearer to an open end of the light guide path than the center of the outer periphery. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
