关于光的合成实验,大多数教师是用传统的染色白炽灯泡或在灯泡上蒙上有色透明纸,由于色光纯度不够,光的发散度大,教学效果不明显.实验室虽然有演示器,但是经实践验证效果不明显,被搁置了起来;其他资料上也有光的合成演示仪的制作,但是都因制 On the light of the synthesis experiment, most teachers are using traditional dyeing incandescent light bulbs or bulbs covered in colored transparent paper, due to the purity of light is not enough, the light of the divergence, the teaching effect is not obvious. Although the laboratory demonstrator, but The results of the practice proved not obvious, was shelved up; other information is also the synthesis of light on the production of demonstrators, but all due to the system