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笔者试制了一种简易眼镜式额镜。通过对500多例检查的实践,体会到这种简易眼镜式额镜不受客观条件影响,使用舒适,携带方便,制作也较简单,现介绍如下。一、材料眼镜架,小灯座,螺丝,聚光电珠(3.8伏,0.3安,采自浙江省海宁县沈士电珠厂),电线,避光套管(用白铁皮或铝块制成,其作用为避光刺眼),Ⅰ号电池3节。二、制作方法将眼镜架中央钻一小孔,再把小灯座用螺丝固定在中央,灯座的正负极通过电线与电池正负极联接,再装上聚光小电珠及避光套管便可使用了。
I trial a simple glasses type forehead. Through the practice of more than 500 checks, I realized that this simple glasses-type front view mirror is not subject to objective conditions, the use of comfort, easy to carry, production is also relatively simple, are described below. 1. Material: Eyeglass frame, small lamp holder, screw, condenser ball (3.8V, 0.3A, taken from Shenshi pearl factory in Haining County, Zhejiang Province), electric wire, dark tube (made of white metal or aluminum, Its role is to avoid glare), Ⅰ battery 3. Second, the production method The eyeglass frame drill a small hole in the center, then the small lamp holder with a screw fixed in the center, the positive and negative lamp holder through the wire and battery positive and negative connections, and then loaded condenser light beads and light sets Tube can be used.