By focusing a circleof light on the cornea and measuring its reflection, it is possible to determine the exact curvature of the cornea's surface.
通过将一束圆形光圈聚焦在角膜上,测量反射过来的光线,就能得出角膜表面曲率的确切数据。
2
This paper helps briefly derivate a general acceleration formula of curvilinear motion with an acceleration definition and the concepts ofcurvaturecircle, and obtains an important conclusion.