一种新型的镜度测试工具

A New Dioptermeter

本文主要介绍JG比较式镜度检具的原理及使用方法,并将其性能与其它眼镜片检查仪器进行比较,同时阐述本检具使用方便、精度可靠等特点。

The priciple and usage of JG comparison dioptermeter arc mainly presented in this article. The properties of this meter are compared with ones of other instruments for glasses testing.This meter is convenient to use and its accuracy is dependable.