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本发明提供一种红外吸收滤光片及其制备方法。该红外吸收滤光片由70-98%克分子的SiO2、1- 12%克分子的CuO和1-18%克分子的网络外体氧化物构成,其制备过程就是将一种二价铜化合物和一种充当网络外体氧化物的金属物质化合物掺入一种湿凝胶中。为了使二价铜化合物和作为网络外体氧化
The invention provides an infrared absorption filter and a preparation method thereof. The infrared absorption filter consists of 70-98 mol% SiO2, 1-12 mol% CuO, and 1-18 mol% of network exosomes. The preparation process is that a divalent copper compound And a metal compound that acts as an exo-network oxide into a wet gel. In order to make divalent copper compounds and as the network outside the body oxidation