LIGHT-EMITTING DIODE LAMP UNIT

PROBLEM TO BE SOLVED: To provide an LED lamp unit restraining temperature rise of an LED light source by making the unit using an LED as a light source into a structure with a high heat-dissipating property, and therefore, capable of securing a given irradiation light volume through suppression of d...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ICHIKAWA SHINGO, TAMOTO NAOKO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING 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 INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS LIGHTING MECHANICAL ENGINEERING STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an LED lamp unit restraining temperature rise of an LED light source by making the unit using an LED as a light source into a structure with a high heat-dissipating property, and therefore, capable of securing a given irradiation light volume through suppression of degradation of emission efficiency of the LED. SOLUTION: An LED mounting substrate 7 loaded on a heat sink 3 is housed in a space 9 formed by the heat sink 3, a reflector 2, a lens holder 4, and a projection lens 5. The heat sink 3 is structured of a plate-like base part 3a, and a plurality of plate-like fin parts 3b put in parallel from the base part 3, and a tip part 3bb of each fin part 3b at a side opposed to the base part 3a is slanted upward toward a direction contrary to an irradiation direction on an irradiation axis X of the lamp unit 1. COPYRIGHT: (C)2009,JPO&INPIT