牛顿环是一种典型的等厚干涉现象，应用领域广泛，利用牛顿环图像可进行光学测量或光学检验，如测量透镜表面曲率半径或液体折射率，或检验光学器件的表面凸凹、光学元件表面质量等等。 但在利用牛顿环进行实际测量或检测过程中，由于产生牛顿环图像的上下两个光学玻璃表面不是理想相切，而是两个表面相互挤压，因挤压应力的存在导致牛顿环干涉图像产生变形，从而影响测量精度。 本课题以导致牛顿环变形的应力为切入点进行研究，利用应力作用下的牛顿环图像探索研究一种基于光干涉法测量光学玻璃体应力的无损测量方法，课题研究在牛顿环应用领域具有独创性。 在应力作用下，牛顿环将产生应力变形，导致干涉图样发生改变，可利用这一微小变化测量光学玻璃体应力。本课题以平板理论为基础，理论推导了牛顿环曲率半径与应力之间的解析公式，自行设计了可安装在牛顿环仪上的施压装置，利用牛顿环施压装置实验研究了施加应力与干涉图样的变换关系，通过理论分析与实验比较，证明了用牛顿环干涉法测量应力的可行性。

Newton's rings is a kind of typical phenomenon of isopach interference and possess wide application field, Newton ring image can be used to optical measurement or optical inspection, such as measuring radius of curvature of lens surface or refractive index of liquid, or inspecting surface convex concave of optical device,surface quality of optical element , etc. But the existence of the extrusion stress leading to deformation of Newton ring image will affect measurement accuracy in the use of Newton's rings for actual measurement or testing, as the surface of two pieces of optical glass generating Newton ring image is not ideal tangent but rather squeeze each other. Whit the breakthrough point of stress which caused deformation of Newton ring, this subject taking advantage of Newton ring image under the action of stress put forward an nondestructive optical vitreous stress measurement method based on the optical interference method, furthermore this subject possess originality in the application fields of Newton's rings. Under the action of stress, the stress deformation on Newton's rings leading to the change of interference pattern will come into being, cause a change of the interference pattern, therefore this tiny changes can be used of to measure optical vitreous stress. This subject has theoretically deduced analytic formula between curvature radius of Newton's rings and stress based on plate theory, designed a pressure applying device which can be reasonably installed on the Newton's ring device, experimentally studied the transformation relation between the applied stress and the interference pattern by the pressure applying device of Newton's rings, eventually proved the feasibility of the stress measurement method based on interference technique with newton ' s ring through theoretical analysis and experimental comparison.