论文部分内容阅读
无损液体浸没准直技术与朗奇光栅剪切干涉仪组合在一起用来测定透明玻璃材料,特别是透镜形式玻璃材料的常数。其简单性和在任何波长下将能同样很好地工作这一事实,优于现有测定玻璃的各种常数(折射率,阿贝数或v值,部分色散因数等)的方法。在朗奇图内出现的剪切干涉条纹用以确定在传播中作为目标的点光源的准确位置。在两个横向位移球面波阵面之间的重叠区内的无干涉条纹,表示目标的准确焦点位置,即散焦为零。此方法用不同液体测定了目标的位移量。
Non-destructive liquid immersion collimation technology and Ronchi grating shear interferometer together used to determine the transparent glass material, especially the lens form of glass material constant. Its simplicity and the fact that it will work equally well at any wavelength are superior to the existing methods of determining the various constants (refractive index, Abbe number or v value, partial dispersion factor, etc.) of the glass. Shear interference fringes appearing in Ronchittu are used to determine the exact location of point light sources that are targeted during propagation. The interference-free fringes in the overlap region between two transversely displaced spherical wavefronts represent the exact focus position of the target, ie defocusing to zero. This method uses different liquids to measure the displacement of the target.