| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED lighting device which is made thinner and more compact to reduce cost and in which no wiring influences light emitted by LED elements to realize wide and uniform illumination.SOLUTION: An LED lighting device has in a central part an attaching member attached to an attached member, and comprises: LED elements 25; a plurality of LED substrates 24 in a circular arrangement surrounding the central part; lighting circuit boards 23a, 23b powering the LED elements 25 and arranged further outside than the LED substrates 24 when viewed from the light emission direction of the LED elements 25; and lead wires 24b, 24d electrically connecting the LED substrates 24 neighboring in the circumferential direction each other. In a state of forming a circular shape surrounding the central part as a whole when viewed from the light emission direction, the plurality of LED elements 25 are mounted on any of the plurality of LED substrate 24. The lead wires 24b, 24d are arranged at positions separate from the circular region on which the plurality of LED elements 25 are mounted.SELECTED DRAWING: Figure 14 |
