摘要
利用一块凹透镜Ｌ２与一块可移动的凸透镜Ｌ１，当它们间距离相对变化时，整个系统可得出各种不同的的球面焦度（医学上习惯用曲光度），以此来测定眼球的曲光度。
When the distance between a concave lens and a convex lens that can be moved changes,Varied dioptric strength canbe be got in the system.Then,dioptric strength of an eye will be determined.
出处
《中国医学物理学杂志》
CSCD
1999年第2期121-123,共3页
Chinese Journal of Medical Physics
关键词
测定
视力表
人眼
曲光度
几何光学
determination of dioptric strength
vision table Abstract:Objective:The changes of haemorheology was investigated during and after open heart surgery.Methods:Hematocrit (Hct),erythrocyte sedimentation rate (ESR),plasma viscosity,whole blood viscosity (hig
