| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED lighting device capable of reducing power consumption and exchange frequency and further attaining a uniform illuminance distribution. <P>SOLUTION: The LED lighting device A1 has a plurality of LED chips 35, and a pair of side mounting faces 21A wherein the distance between the side mounting faces becomes smaller from a base side toward a pointed head side in the x direction and the side mounting faces mutually face opposite sides in the y direction, and the distance between the side mounting faces also becomes shorter from a back side toward a front side in a direction which is perpendicular to both the x direction and the y direction. The plurality of LED chips 35 include LED chips belonging to a pair of side irradiation groups which are mounted on the pair of side mounting faces 21A. <P>COPYRIGHT: (C)2012,JPO&INPIT |
