Imaging spectrum filter and preparation technique thereof
An imaging spectrum and optical filter technology, which is applied in the field of optical filters, can solve the problems of large stress effect of the film layer and achieve the effect of firm film layer, excellent spectral performance and compact structure
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[0044] In order to describe in detail the technical content, structural features, goals and effects of the present invention, the following will be combined with the following embodiments and the attached figure 1 , 2 , 3, 4, 5, 6 in detail.
[0045] Such as figure 1 As shown, the imaging spectral filter of the present invention includes a substrate 1 and a pixel layer 2 , and the front and back surfaces of the substrate 1 are covered with the pixel layer 2 . Both sides of the pixel layer 2 are interference film system or a combination of interference film system on one side and color photosensitive adhesive on the other side. The interference film system refers to the combination of Nb 2 o 5 (also available Ta 2 o 5 instead) and SiO 2 The film layer is composed of repeated interphase coatings, that is, Nb 2 o 5 and SiO 2 The film layers are alternated and repeated many times, but the thickness of each film is different. The substrate 1 is made of optical glass or ot...
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