1 汽车前照灯技术的新发展对汽车前照灯的要求是:在汽车前方距离至少100 m(随汽车车速的提高,这一距离现已增加到150 m 以上),高度2 m～2.5 m 的空间范围内,前方道路路面应得到良好的照明(发光强度12 000 cd以上);同时射向会车时的光线不会使对方驾驶员眩目(发光强度低于1 000 cd)。汽车前照灯结构的发展,在很大程度上是在追求上述两 A new development of automotive headlamp technology Headlamps for vehicles require a distance of at least 100 m in front of the car (this distance has now been increased to more than 150 m as the car’s speed increases) and a height of 2 m to 2.5 m , The road surface in front of the road should be well illuminated (luminous intensity over 12 000 cd); at the same time, the light emitted to the meeting car will not make the other driver dazzle (luminous intensity below 1000 cd). The development of automobile headlight structure is to a large extent the pursuit of the above two