随着国家启动“光明工程” ,计量部门眼镜测量仪器的检修工作量大大增加。焦度计作为保证眼镜产品和配镜质量的眼镜测量仪器之一 ,其准确性尤为重要。目前市场上在用的焦度计主要有自动数显类、手动（数显、直读）类两类。在国内市场最常见的是手动类焦度计。只要仪器使用得当 As the country started the “Bright Project”, the measurement department of glasses measuring instruments maintenance workload greatly increased. As one of the glasses measuring instruments that guarantee the quality of spectacle products and glasses, the accuracy of the power meter is of particular importance. At present, the focal meters used in the market mainly include automatic digital display type and manual type (digital display and direct reading type). The most common in the domestic market is the manual focus meter. As long as the instrument is used properly