INTELLIGENT LIGHT DEVICE FOR A VEHICLE

摘要

An intelligent light device for a vehicle includes a light body, a light-controlling unit, a light-emitting unit and a condensing lens. The light-controlling unit has a MCU and a PWM. The light-controlling unit is used to sense a first illumination level of a surrounding area of a light projection region. Wherein when the MCU receives a signal of the first illumination level, the MCU generates one command of a difference value between a preset illumination level and the first illumination level; and then, the MCU transmits one command to the PWM; thereafter, the PWM adjusts a second illumination level of the light-emitting unit according to one command from the MCU so as to achieve a third illumination level of the light projection region.

主权项

1. An intelligent light device for a vehicle comprising a light body, a light-controlling unit, a light-emitting unit and a condensing lens;
the light body having a reflective cup defined at a front portion thereof, the reflective cup concaved toward one end of the light body, an opening defined at one end of the reflective cup, the condensing lens defined at the opening of the reflective cup, the light-controlling unit defined in the light body, the light-emitting unit defined on an inner wall of the reflective cup and facing toward the condensing lens, a light projection region defined by the light beam which is projected from the light-emitting unit and refracted through the condensing lens, the light-controlling unit facing toward the light projection region; and the light-controlling unit having a micro control unit and a pulse width modulation unit, the light-controlling unit used to sense a first illumination level of a surrounding area of the light projection region, the micro control unit having a preset illumination level, the micro control unit used to receive a signal of the first illumination level, the pulse width modulation unit used to adjust a second illumination level of the light-emitting unit; wherein when the micro control unit receives the signal of the first illumination level, the micro control unit first compares the signal with the preset illumination level and generates a difference value between the preset illumination level and the first illumination level; and then, the micro control unit transmits the difference value as one command to the pulse width modulation unit; as a result, the pulse width modulation unit adjusts the second illumination level of the light-emitting unit according to one command from the micro control unit so as to achieve a third illumination level of the light projection region by increasing or decreasing the first illumination level.