| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED lamp which can interrupt a predetermined circuit certainly at the time of fault while coping with a structure where an electronic component is embedded in a substrate. <P>SOLUTION: A blocking portion 45 for blocking with heat generated at the time of abnormal operation of a transistor Q in an electronic component 42 embedded in a substrate 21 formed in multilayer is formed in the core 26 of the substrate 21. While coping with a structure where the electronic component 42 is embedded in the substrate 21, a lighting circuit formed of the electronic component 42, the blocking portion 45 to be interrupted, and the like, can be interrupted certainly. <P>COPYRIGHT: (C)2010,JPO&INPIT |
