| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for improving a light utilization rate in a vehicle lighting appliance.SOLUTION: A vehicle lighting appliance in one embodiment of the present invention comprises: a light source 10; a light distribution pattern forming part 30 in which a plurality of optical elements which can independently switch between a state that light-source light is radiated in front of the lighting appliance and a non-radiated state or a light-extinguished state are aligned; and an optical member 20 which radiates the light-source light to the light distribution pattern forming part 30. The optical member 20 radiates the light-source light to the light distribution pattern forming part 30 so that a prescribed illuminance distribution including a second illuminance region R2 which is lower than a first illuminance region R1 in illuminance is formed above the light distribution pattern forming part 30. The light distribution pattern forming part 30 radiates light for forming a first light distribution pattern in front of the lighting appliance by using the optical element which is overlapped with the first illuminance region R1, and radiates light for forming a second light distribution pattern which is lower in illuminance in front of the light appliance by using the optical element which is overlapped with the second illuminance region R2 or brings the optical element into the non-radiated state. |
