| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress deterioration in light-emitting efficiency of a phosphor due to heat generation of an LED chip. <P>SOLUTION: A light-emitting device is provided with an LED chip 10 for radiating a blue light; a mounting substrate 20 having the LED chip 10 mounted on one surface side; and a dome-like color conversion member 70 which is formed of a phosphor (yellow phosphor) excited by a light radiated from the LED chip 10 and radiating a light of color different from the emission color of the LED chip 10 and a silicone as a light transmissive material, and arranged in a way that the LED chip 10 etc. are surrounded between itself and the mounting substrate 20 on the one surface side of the mounting substrate 20. A heat insulating layer 90 is provided between the mounting substrate 20 and the color conversion member 70 to block heat conduction from the mounting substrate 20 to the color conversion member 70. <P>COPYRIGHT: (C)2007,JPO&INPIT |
