WHITE LIGHTING SYSTEM AND LIGHTING FIXTURE FOR VEHICLE

PROBLEM TO BE SOLVED: To provide a lighting system having large luminance, a small temperature increase, and improved chromaticity uniformity, where a plurality of LED chips are arranged linearly. SOLUTION: The lighting system includes: a plurality of light-emitting elements 2 arranged in a line wit...

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Bibliographische Detailangaben
Hauptverfasser:	KAWAKAMI YASUYUKI, AKAGI TSUTOMU
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY 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 NON-PORTABLE LIGHTING DEVICES SEMICONDUCTOR DEVICES SYSTEMS THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a lighting system having large luminance, a small temperature increase, and improved chromaticity uniformity, where a plurality of LED chips are arranged linearly. SOLUTION: The lighting system includes: a plurality of light-emitting elements 2 arranged in a line with a prescribed interval; and a phosphor layer 3 for integrally covering the upper and side faces of the plurality of light-emitting elements 2. The interval (d1) of the light-emitting elements is nearly equal to distance (d2) between the side face of the light-emitting elements and that of the phosphor layer 3, thus preventing a change in chromaticity from appearing periodically in illumination light. Also, a film thickness (d3) of the phosphor layer is reduced as compared with d1 or d2, thus further preferably preventing a phenomenon, where emission light (excitation light) from the light-emitting elements has a strong color taste at edges of illumination light. COPYRIGHT: (C)2010,JPO&INPIT