| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting system capable of variably controlling a light distribution of light emitted from a light emitting element, by providing a light distribution control means moving in the direction of the optical axis of a light guide member to guide light emitted from the light emitting element. <P>SOLUTION: This lighting system includes a substrate 11 to which the light emitting element 10 is mounted, a heat dissipating member 12 thermally combined with the substrate 11, the light guide member 20 having a light entrance plane 21 and a light emitting surface 22 of light emitted from the light emitting element 10 to guide light entered from the entrance plane 21 to the light emitting surface 22, and the light distribution control means 30, 50 to variably control the light distribution of the emitted light of the light guide member 20 by moving in the direction of the optical axis of the light guide member 20. <P>COPYRIGHT: (C)2010,JPO&INPIT |
