论文部分内容阅读
显微镜是初中阶段学生使用的实验仪器,实验室中的显微镜都属于依赖外界光源的普通光学显微镜。因此,实验室都是把光源接到每一张实验桌上,这样虽然满足了显微镜的光照要求,但也带来了严重的安全隐患。为了让实验室更安全,为了让学生更方便地使用显微镜,笔者对显微镜做了简单的改装,取得了较好的效果。一、改装方法1.所需材料。发光二极管(最好是白光)1只,小纽扣电池3粒,废笔管1支。2.改装。先将纽扣电池和二极管及笔筒加工成适
Microscopes are experimental instruments used by students in the junior middle school. The microscopes in the laboratory belong to ordinary light microscopes that rely on external light sources. Therefore, the laboratory is the light source connected to each experimental table, so that despite the microscope to meet the lighting requirements, but also brought a serious security risk. In order to make the laboratory more secure, in order to make students more easily use the microscope, the author made a simple modification of the microscope and achieved good results. First, the modified method 1. The required materials. Light-emitting diodes (preferably white) 1, 3 small button batteries, waste pipe 1. 2 modified. First button batteries and diodes and pen holder into suitable processing