Author(s): YIN Hong-fei, SHI Shi-peng, CAO Guo-rong, YANG Yu
Pages: 23-25
Year: 2014 Issue:  4
Journal: Physics Experimentation
Keyword:  eyeglass; refractive index; radius of curvature;
Abstract: The focus power of eyeglass was measured using lensometer ,and some other parame-ters could be measured using dial test micrometer ,gauge block ,check ring and so on .T he radius of curvature of eyeglass surface and the refractive index of spectacle lens could be calculated based on these results .