通过分析空气劈尖的直线型等厚干涉条纹到牛顿环的圆环型等厚干涉条纹的逐渐演变过程,解释了劈尖干涉条纹及牛顿环干涉圆环分布的特点.证实了劈尖干涉和牛顿环干涉产生机理的一致性,即两种干涉均属于分振幅薄膜干涉-等厚干涉,这在一定程度上是对目前国内常见《光学》教材中薄膜干涉-等厚干涉相关内容的补充和完善,加深了学生对分振幅薄膜干涉-等厚干涉原理的理解,教学效果明显提高.%Both the linear equal thickness interference of air wedge and the circular equal thickness interference fringe can be obtained by means of Newton ' s ring. The distributive features of linear and circular fringes can be explained, and the consistency of mechanism which produces wedge interference and Newton ' s ring interference can be verified by the analysis of the gradual evolutionary process from linear equal thickness interference fringe of air wedge to the circular equal thickness interference fringe. That is, these two interferences, both belonging to point amplitude film interference-equal thickness interference, enhancing students' understanding of principles of point amplitude film interference-equal thickness interference and resulting in a better teaching effect.
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