| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device with good heat radiation property of which, the addition of a cooling plate or the like does not causes the enlargement of the size of the device. SOLUTION: The lighting device 1 comprises an LED mounting substrate 2 and an air exhauster 3. The LED mounting substrate 2 has stand-shaped protruded parts 21 and a flat part 22, and a large number of LED's are mounted to the protruded parts 21. The protruded parts 21 protrude from one side of the LED mounting substrate 2, and a space is formed between the protruded parts 21 and the wall surface by sticking the LED mounting substrate 2 to a wall surface. The air exhauster 3 exhausts the heat generated by the LED's by using the space between the protruded parts 21 and the wall surface as a flow path, and sucks and exhausts the air in the flow path. |
