非接触式及浅近切割式牛顿环装置的工作原理

The principle of non-contact type and simple cutting type newton ring apparatus

提出并分析了两种与传统牛顿环装置不同的变形牛顿环装置的工作原理———非接触式牛顿环装置和浅近切割式牛顿环装置;给出了两种变形的牛顿环装置的理论推导公式,理论推导证明非接触式和浅近切割式牛顿环装置与传统牛顿环装置具有相同的干涉规律及测量公式;并给出了非接触式、浅近切割式及相切式牛顿环的统一的光程差,牛顿环半径及凸透镜曲率半径测量公式。

This paper put forward two kinds of deformation Newton's Ring device different from traditional Newton's Ring device, and analyse the work principle of non-contact type Newton Ring device and simple cutting type Newton Ring device. Give out two kinds of theory derivation formulas of deformed newton's ring device. Theory derivation proved that non-contact type and simple type cutting Newton's Ring device possesses the identical interference law and measurement formula with traditional Newton's Ring device. And give out the unified optical path, Newton's Ring radius and convex lens curvature radius measurement formula of non- contact type, simple cutting type and tangent type Newton's Rring.