| 摘要 |
<P>PROBLEM TO BE SOLVED: To restrain emission of light from a light-emitting element toward a direction directly above the light-emitting element through a light flux control member, and to emit the light from the light-emitting element widely toward a side of the light flux control member. <P>SOLUTION: A light-incident surface part 7 of the light flux control member 4 makes the light from the light-emitting element 3 refracted and incident to array nearly in a direction along a light axis L, most of the light incident from the light incident surface part 7 is made totally reflected on a light reflecting surface part 11, and then, the light reflected at the light reflecting surface part 11 can be widely emitted from a light emission surface part 12 to a side of the light flux control member 4. As a result, the light-emitting device 1 can restrain emission of light toward a direction directly above the light-emitting element 3 and the light flux control member 4. <P>COPYRIGHT: (C)2013,JPO&INPIT |
