| 摘要 |
<p>PURPOSE: A car headlight is provided to prevent an accident by automatically controlling strength and weakness of the intensity of light. CONSTITUTION: The intensity of light of a car headlight is 2 kinds. A light sensor is equipped in the front of the car headlight. The light sensor senses the brightness of surrounding light. The intensity of the light of the car headlight is automatically controlled. The intensity of the light of the car headlight is weakly controlled in case lots of street lights are installed. The intensity of the light of the car headlight is brightly controlled in a dark place.</p> |
