The present invention relates to an infrared ray transmission filter manufacturing method for obtaining a discriminative image in the case of bad weather in which TiO 2 and SiO 2 are sequentially laminated on a surface of a glass one after another and the infrared ray transmittance is made to be 70% to 97% And a filter manufactured by this manufacturing method. Accordingly, the present invention has a very useful effect that can be applied to various fields such as military, crime prevention, and industrial fields as it acquires discriminative images even in bad weather such as fog, rain, snow, sea and the like.
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