n.視力計(jì)；視力檢定裝置

Objective To introduce the structure and operating principle of a laser optometer for dark focus(DF). 目的:介紹了暗焦點(diǎn)檢查儀的結(jié)構(gòu)原理。

Objective To introduce the structure and operating principle of a laser optometer for dark focus (DF). 摘要目的：介紹了暗焦點(diǎn)檢查儀的結(jié)構(gòu)原理。

Results The laser optometer was proved to be a reliable instrument with fine stability and good repeatability. 結(jié)果:證明儀器穩(wěn)定性及重復(fù)性好。

This paper introduces an electronic optometer based on SCM, which is convenient, rapid and accurate. 本文介紹了一種用單片機(jī)制作的視力計(jì),具有方便、快捷、準(zhǔn)確的特點(diǎn)。

Conclusion The laser optometer for dark focus can be used for further study relating to the aviation vision. 結(jié)論：可用于航空視覺方面的深入研究。