| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting apparatus which can reduce effect of high-frequency noise, etc. while having multiple LED circuits with multiple LED light sources and various load capacities. <P>SOLUTION: Since a first LED circuit 32A which has a large number of LED light sources 31 and the largest load capacity is disposed so that a current path from a power supply circuit 42 becomes the shortest path, the current path which is most likely to cause noise such as high-frequency noise can be shortened. Thus, the effect of high-frequency noise, etc. can be reduced. By disposing an LED circuit 32B having the second largest load capacity so that the current path becomes the second shortest path after the first LED circuit 32A, the effect of high-frequency noise, etc. can be further reduced. In addition, by disposing lighting circuits 43 with various load capacities on one substrate, the power supply circuit 42 can be unified and the number of components and also connectors or the like for connecting the respective circuits can be reduced. <P>COPYRIGHT: (C)2012,JPO&INPIT |
