Designed for detection, recognition and analysis of complex signals in the visible and infrared spectral ranges due to the formation of a spectral image in the sensitivity plane of the matrix elements of the photodetector devices and find application in the composition of gas analyzers, monochromators, radiometers, scanning velocity spectrometers for air pollution control problems, remote monitoring , astronomy, separation of orders in diffraction gratings, etc.

Technologies used:
- manufacturing technology of linear and ring tunable narrow-band filters for optical elements from glass to a spectral range from 0.4 to 1.1 μm by electron-beam evaporation in vacuum;
- manufacturing technology of linear and ring tunable narrow-band filters for optical elements from silicon and germanium to a spectral range of 3 to 5 μm by electron-beam evaporation in vacuum;
- manufacturing technology of linear and ring tunable narrow-band filters for optical elements from germanium to the spectral range from 8 to 12 μm by electron-beam evaporation in vacuum.