功能：测试眼镜的上、下、左、右及侧面是否能完全保护眼睛

measuring the protection of the spectacles for the eyes from the inferior，superior，left，right，and lateral side

符合标准：EN168

技术参数：

功能：测试眼镜的上、下、左、右及侧面是否能完全保护眼睛

measuring the protection of the spectacles for the eyes from the inferior，superior，left，right，and lateral side

符合标准：EN168

主要特点：

功能：测试眼镜的上、下、左、右及侧面是否能完全保护眼睛

measuring the protection of the spectacles for the eyes from the inferior，superior，left，right，and lateral side

符合标准：EN168