A kind of liquid crystal glasses for drivers at night is designed.
基于常开型液晶光阀的电光特性设计了一种司机夜间行车时佩戴的液晶眼镜。
Taking the glasses for an example, the course of the reverse engineering, 3D model, mold designing and manufacturing were introduced and analyzed.
以眼镜塑料件为例,介绍了该制件的逆向工程、三维造型、模具成型零件设计及其数控加工等过程,并对各过程进行了简要的分析,实现了Pro/E软件在复杂型面模具设计与制造中的应用。
There are about two arguments on the origin of spectacles in China.
该文通过文献考察与研究，指出唐墓出土的铅眼罩不是针孔眼镜，宋代文献也没有关于眼镜的史料，而在传教士来华之前的元代，中国人已发明使用了一种保护眼镜。
Effect of progressive multi-focal spectacles on phoria degree in the teenager nearsighted;
渐进多焦眼镜对青少年近视眼隐斜的影响
Methods The amplitude of accommodation and the amount of heterophoria on near(33cm)fixation were determined without and with correcting spectacles in30amblyopic children with hyperopia and20emmetropic children,respectively.
05)△,戴矫正眼镜的隐斜度为(-3。