| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light-emitting device which suppresses temperature rise of a color converting portion without having an adverse influence on optical characteristics, and improves an optical output. <P>SOLUTION: The light-emitting device includes an LED unit A in which an LED chip 1 is mounted on one face side of a mounting board 2, and a light distribution unit B which is arranged at the one face side of the LED unit A, and has a light distribution lens 21 to control distribution of light emitted from the LED chip 1. The light distribution unit B is provided with a reflector 31 and the color converting portion 41, wherein the reflector is arranged in an estranged manner in a thickness direction of the mounting board 2 from a mounting face of the LED chip 1 in the mounting board 2, and reflects the light emitted from the LED chip 1 onto a side of the light distribution lens 21, while the light converting portion is held at an inside face side of the reflector 31, and formed by a translucent material including a phosphor. The reflector 31 serves also as a heat dissipating member which radiates heat generated by the phosphor of the color converting portion 41. <P>COPYRIGHT: (C)2009,JPO&INPIT |
