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文章记录了大平行光管在带有空调的实验室内使用产生的像质变坏的影响。提出了对大平行光管的镜筒效应,并解释像质变坏是由于镜筒内空气有层状温度梯度分布所造成的。试验在撤除空调,室内上下等温情况下平行光管的像质良好,并得到高的分辨率结果。
The article documents the effects of deteriorating the image quality of a large parallel tube used in an air-conditioned laboratory. The lens barrel effect of large parallel light pipe is proposed and the deterioration of image quality is caused by the layered temperature gradient distribution of air in the lens barrel. Test Remove the air conditioning, indoor and outdoor conditions under the collimator good image quality, and get high resolution results.