| 摘要 |
The present invention relates to a lamp device for a vehicle, comprising: a lamp unit wherein a light source is placed; an oil pressure supply unit storing fluid, expanded by heat from the light source, and generating an oil pressure by an expanding force of the fluid; a cylinder unit forming a storage space which stores gas, including a main piston placed in the storage space to be moved by the oil pressure; and a dehumidifying unit dehumidifying the gas, induced by a movement of the main piston from the cylinder unit, and supplying the dehumidified gas into the lamp unit. The present invention is capable of improving stability by preventing dew condensation in the lamp unit. |
