To provide a light-emitting device which efficiently diffuses the heat of a light-emitting diode by a simple structure.
A light-emitting deice includes: a substrate; a plurality of first light-emitting units disposed on a first straight line on the substrate; a plurality of second light-emitting units disposed on a second straight line separated from the first straight line and parallel with the first straight line on the substrate, and having a different luminescent color from the first light-emitting units; and a plurality of third light-emitting units disposed on a third straight line separated from the first and second straight lines and parallel with the first and second straight lines on the substrate, and having a different luminescent color from the first and second light-emitting units. A distance between the light-emitting units having the same luminescent color is larger than the minimum distance between the light-emitting units having different luminescent colors.
MITSUISHI IWAO
MATSUDA NAOHISA
KATO MASAHIRO
ISHIDA KUNIO
FUKUDA YUMI
HIRAMATSU RYOSUKE
ALBESSARD KEIKO
OKADA AOI
JP2011159832A | 2011-08-18 | |||
JP2006332490A | 2006-12-07 | |||
JP2004512687A | 2004-04-22 | |||
JP2008028171A | 2008-02-07 | |||
JP2007150268A | 2007-06-14 |
Akira Sudo
Mitsuyuki Matsuyama