| 摘要 |
<p>PURPOSE:To irradiate the light having the proper brightness without giving dazzlement to a driver on other vehicle, by controlling at least one among the radiation direction, radiation range and the brightness of a head lamp by a control means, on the basis of the movement state of other vehicle detected by a moving state detecting means. CONSTITUTION:With a controller 50 for controlling each optical quantity of head lamps 18 and 20, a camera 22 is connected through an illumination meter 70, car speed sensor, and an image processing device 48. The between-vehicle distance SL from a vehicle ahead which is obtained by the image processing device 48 and the vehicle-to-vehicle distance SR from an oncoming vehicle are read, and the approach state is judged by calculating the variation quantity dSR from the vehicle-to-vehicle distance SR' which is read in the preceding time. The brightness is gradually changed by controlling the brightness by setting the variation rate up to the voltage value VH to be set in the future from the voltage value set at present, and the trouble that a driver on other vehicle is given with the discomfortable feeling is prevented. The voltage value is outputted into the voltage setting circuits 66 and 68, and each voltage of the head lamps 18 and 20 is controlled.</p> |
