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We examined theoretically and experimentally tunable acousto-optic filters, i.e., modern electronically controlled devices that are used to regulate parameters of light. As known, the tunable acousto-optic (AO) filters provide effective filtering of optical radiation as well as fast and reliable processing of images. These filters have successfully been used in airborne and space instruments intended to monitor chemical composition of atmosphere of the Earth and planets. Unfortunately, the image processing was carried out only in the visible and near infrared region of spectrum while this processing remains problematic in the ultraviolet (UV) spectral domain. The disadvantage originates from relatively poor AO efficiency of the KH2PO4 (KDP) crystal, i.e., the only crystalline material suitable for the application in the UV region.