摘要
通过对国外几种自动数字屈光度仪的研究和分析,提出了一种数字屈光度仪的光学原理,推导出眼镜片屈光度的计算公式,为我国数字屈光度仪产品的进一步研发奠定了基础.
By analyzing several kinds of foreign automatic digital diopter instruments, the optical principle of a kind of automatic digital diopter instrument has been proposed, and the calculating formula of lens diopter has been deduced, thus a solid foundation for further developing our china's domestic digital diopter instrument has been laid out.
出处
《山西大同大学学报(自然科学版)》
2008年第4期23-25,共3页
Journal of Shanxi Datong University(Natural Science Edition)
关键词
屈光度仪
光学原理
共轭
顶焦度
diopter instrument
optical theory
conjugate
vertex diopter