This article mainly introduces the research and preparation of a three-band near infrared optical filter.
2
光学薄膜技术在近十年来取得的进步，为拉曼光谱仪提供了高性能、高品质且低价格的光学滤光片。
Advances in optical coating technology over the past decade have made it possible to produce high-performance Raman spectroscopy filters with better reliability and at lower costs.
3
费格斯在一本塞在某个角落的光学器材目录里发现了一种能阻隔可见光的滤光片。
Tucked away in the corner of an optics catalog, Fergus found a special filter that blocks visible light, but not IR or UV.
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