| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting device capable of obtaining wide-angle light distribution characteristics required for a spot type and an electric bulb type by fitting to the circumstances of facilities and taste of a user and making sufficiently diffused light lead out from the lighting device and further, being excellent on designability. <P>SOLUTION: The lighting device includes a power receiving portion supplied with power from the outside, a power source portion connected with the power receiving portion for converting the power into designated drive power, a light source portion connected with the power source portion and emitting light by the drive power, a case for storing the light source portion, and a light guide portion arranged by projecting from the case and leading out light of the light source portion entered from a light incident surface from light emitting surfaces of the branched light guide pieces. The light emitting surfaces of the light guide pieces have at least one surface or more formed with concave or convex patterns for leading out the light of the light source portion as diffused light. <P>COPYRIGHT: (C)2013,JPO&INPIT |
