发明名称 BEACON LIGHT
摘要 <P>PROBLEM TO BE SOLVED: To provide a beacon light which relieves requirements for an optical system. <P>SOLUTION: The beacon light has a light with light-projecting windows; a surface light source which has a board and a plurality of LED chip groups arranged in a rectangular shape in approximately the same direction on the board and has different lengths on at least part of the plurality of LED chip groups and is arranged on the board so as to be different in the maximum lengths of the plurality of LED chip groups and widths of the plurality of the whole LED chip groups and is arranged in the light; and an optical system for leading light emitted from the surface light source to the light-projecting windows. <P>COPYRIGHT: (C)2011,JPO&INPIT
申请公布号 JP2011070948(A) 申请公布日期 2011.04.07
申请号 JP20090221377 申请日期 2009.09.25
申请人 TOSHIBA LIGHTING & TECHNOLOGY CORP 发明人 ISHIDA YASUSHI;MISAWA SHIGERU;MURATA ATSUYA;HONDA KOICHI;HANYUDA YUMI
分类号 F21S2/00;F21W111/06;F21Y101/02;H01L33/00 主分类号 F21S2/00
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