发明名称 LIGHTING DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a lighting device of bulb type having a wide luminous intensity distribution irrespective of a simple structure inside a globe.SOLUTION: A circuit board 44 included in a lighting device has a surface mounted LED device 42 mounted in the central part and a side light-emitting LED device 43 mounted in a periphery part. This surface mounted LED device 42 has a strong luminous intensity distribution in a vertical direction of the circuit board 44, and the side light-emitting LED device 43 has a strong luminous intensity distribution in a horizontal direction of the circuit board 44. As a result, the bulb-type LED lamp 40 (lighting device) has a simple structure inside the globe 41 while having a wide luminous intensity distribution.
申请公布号 JP2013182857(A) 申请公布日期 2013.09.12
申请号 JP20120047837 申请日期 2012.03.05
申请人 CITIZEN HOLDINGS CO LTD;CITIZEN ELECTRONICS CO LTD 发明人 IWAI TAKAE;KAYANUMA YASUAKI
分类号 F21S2/00;F21V19/00;F21Y101/02;H01L33/00 主分类号 F21S2/00
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