论文部分内容阅读
在柏油马路上开车时,经常会看到马路前方好像有一摊水把其附近的物体反射到我们眼睛里而成倒像。为了解释该现象,我们利用激光分别对水面、粗糙桌面和实地马路表面的反射进行了观测,发现无论入射角多大,水面反射后的光斑都是单一清晰明亮的;而粗糙的桌面和马路表面在入射角相对较小时只能发生漫反射,仅当入射角接近90°掠入射时,粗糙反射面顶部构成一个有效的平面使部分光像水面反射一样形成一清晰明亮的反射光斑,可以肯定马路成像的杌理是光在马路表面掠入射时的正常反射,不是蜃景方式的全反射。
When driving on tarmac, it is common to see the front of the road as if there is a pool of water that reflects the objects in the vicinity of our back into our eyes and turns it into an inverted image. In order to explain this phenomenon, we observed the reflection of water surface, rough tabletop and field road surface respectively by using laser, and found that the light spot after water surface reflection is single and bright regardless of the angle of incidence; while the rough tabletop and road surface are in Only a small angle of incidence diffuse reflection can occur only when the incident angle of nearly 90 ° grazing incidence, the top of the rough reflection surface constitutes an effective plane so that part of the surface reflection of water like a clear and bright reflection of light spots, can confirm the road imaging The rationale is that light is a normal reflection of a grazing incidence on a road surface, not a total reflection of the mirage.