| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED bulb capable of attaining wide directivity characteristics, and to provide a lighting fixture installed with the LED bulb. <P>SOLUTION: The LED bulb having wide directivity characteristics is installed with light guide bodies respectively mounted on LEDs mounted on a substrate, light emitted from the LED is diffused by being introduced into the light guide body and being transmitted and reflected. The light guide body is a pillar-shaped body made of a transparent member, a part of the guided light is dispersively emitted in light-guide-body side-face directions from an uneven surface formed on an outer face of the light guide body, and other part of the guided light is emitted by being divided into reflecting light and transmitting light from an inclined surface of the top of the light guide body. <P>COPYRIGHT: (C)2013,JPO&INPIT |
