| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device for a vehicle with improved design and excellent sense of beauty. SOLUTION: The lighting device for a vehicle comprises a bulb 2, a first reflection surface 3 formed into an ellipsoidal surface having a first focus at a filament 2a, with an axis extending in the direction same with the irradiation direction of the lighting device for the vehicle, a second reflection surface 4 formed into a paraboloidal surface having a focus f2 at the second focus of the first reflection surface 3, with an axis extending in the direction perpendicular to the irradiation direction, and a third reflection surface 5 making the reflection light from the second reflection surface 4 appropriately disperse and reflect in the irradiation direction of the lighting device for the vehicle 1. By the above, a new light irradiation system is enabled to provided. |
