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the mirrors have to be contacted optically to the spacer,
which means that the spacer flats have to be polished to optical
quality, but there are certainly companies in china now that can do it.
这是别人的回信上的一段话。
mirror是反射率在99.99%以上的透镜。superpolished to one Angstrom or less。
spacer是一个低膨胀的类似玻璃的块。
请问什么叫“contacted optically to the spacer”?
国内什么单位可以做这个-spacer flats have to be polished to optical
quality?
另外有单位可以做到接近superpolished to one Angstrom or less和镀膜镀到99.9%以上吗?
谢谢!
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