| 摘要 |
A lighting device 1 for a vehicle comprises a lighting unit having such a structure that a light emitting unit 9 including a set of light emitting elements 9 a , 9 a, . . . is connected in parallel. In the case in which the breakage of the light emitting unit is detected by first breakage detecting means 10 A, the generation of the breakage related to the light emitting unit is displayed by display means 11. In the case in which the generation of the breakage of at least a predetermined number of light emitting units is detected by second breakage detecting means 10 B, an alarm is given by flashing a light emitting unit in which the breakage is not detected or a lighting unit including only the light emitting unit in a shorter flashing cycle than a flashing cycle obtained before the detection of the breakage.
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