| 摘要 |
PROBLEM TO BE SOLVED: To downsize a lighting device having a wide irradiation range in one direction.SOLUTION: A lighting device is provided with two light emitting portions 2A, 2B having light emitting faces 20A, 20B on which LEDs 1 are arranged. The two of light emitting portion 2A, 2B are arranged so that faces 21A, 21B opposite to the light emitting faces 20A, 20B face each other. A lighting device A having a wide irradiation range in one direction can be downsized only by two light emitting portions 2A, 2B and still a manufacturing cost of the lighting device A can be reduced. Installation and maintenance work can be done easily through downsizing and the manufacturing cost can be reduced, enabling to provide the lighting device A economically. |
