| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED lamp capable of illuminating a wider area. <P>SOLUTION: The LED lamp 101 is provided with an LED light-emitting part 200 with one or more LED chips, a substrate 410 having a mounting face 411 with the LED light-emitting part 200 mounted, and a globe 500 covering the LED light-emitting part 200 and transmitting the light from the LED light-emitting part 200. The globe 500 is expanded to a front side of the mounting face 411 and has a rotation symmetrical shape with an axis along an x-direction extended to a top 504 of the globe 500 from the substrate 410 as a rotation symmetrical axis O1. A plurality of ridge parts 510 each of a ring shape and with the rotation symmetrical axis O1 as its center, and arrayed in the x-direction are provided on an outer peripheral surface of the globe 500. Each of the ridge parts 510 has: an optical path change surface 511 positioned in a front side in x-direction and refracting light from the LED light-emitting part 200; and a connecting surface 512 located on the opposite side from the optical path change surface 511. <P>COPYRIGHT: (C)2013,JPO&INPIT |
