LIGHT-EMITTING DEVICE

• Main Authors: MITSUISHI IWAO, HIRAMATSU RYOSUKE, ALBESSARD KEIKO, HATTORI YASUSHI, OKADA AOI, FUKUDA YUMI, ISHIDA KUNIO, KATO MASAHIRO, MATSUDA NAOHISA
• Format: Patent
• Language: English
• Published: 28.02.2013
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATINGELEMENTS; LIGHTING; MECHANICAL ENGINEERING; NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; NON-PORTABLE LIGHTING DEVICES; SEMICONDUCTOR DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

PROBLEM TO BE SOLVED: To provide a light-emitting device which efficiently diffuses the heat of a light-emitting diode by a simple structure.SOLUTION: 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.