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有一些半导体物质,在紫外光激发之后,再被红外光照射,会发出可见光,这样就实现了红外光转换成可见光,如果把这种物质做成感光屏加到望远镜上,就可以看得到红外灯了。这种望远镜不需要电池,白天在太阳下晒一下,晚上就可以拿来观察红外设备。这个就是62式观红望远镜。现在收藏的价格在1000元左右 <a href="twitter.com/tetrazene_smith/st" target="_blank" rel="noopener">twitter.com/tetrazene_smith/st</a><br><br>

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