El-Nashar N F, Larke J R, Brookes C J
Am J Optom Physiol Opt. 1979 Jan;56(1):10-5. doi: 10.1097/00006324-197901000-00002.
A method is described for the measurement of the anterior and posterior radii of curvature and thickness or a soft (hydrogel) contact lens. The method is based on the observation of an interference pattern that is generated by two beams of light, one reflected from the surface of the lens and the other reflected from the surface of a comparison mirror. It was found that the maximum coefficient of variation for the measured values of the anterior and posterior radii of curvature was 2% and the minimum value was 0.6%. An accuracy of 1:10(3) for the radii of curvature and the center thickness of the lens is claimed.
描述了一种用于测量软性（水凝胶）隐形眼镜前、后曲率半径及厚度的方法。该方法基于对一种干涉图样的观察，该干涉图样由两束光产生，一束从镜片表面反射，另一束从比较镜表面反射。结果发现，前、后曲率半径测量值的最大变异系数为2%，最小值为0.6%。据称，该方法对镜片曲率半径和中心厚度的测量精度可达1:10(3) 。
