旋转光轴法测量平板玻璃的折射率

Measurement of the refractive index of flat glass by rotating optical axis method

提出了用旋转光轴法测量平板玻璃折射率的实验方案,通过小角度旋转平板玻璃的光轴,使狭缝像发生横向位移,利用显微系统进行放大后测出位移值,通过已知折射率的平板玻璃对实验装置进行定标,根据转角、位移值和平板玻璃的厚度求出待测玻璃的折射率.

A method of rotating light axis to measure the refractive index of flat glass was presented.By rotating the optical axis by a small angle,the position of the slit image was moved horizontally.The displacement was measured by the microscope system,and the experimental device was calibrated by plate glass with known refractive index.Then the refractive index of the flat glass being tested was calculated according to the angle of the rotation,the displacement value and the thickness of the galss.