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Subject of study. Methods for designing unified optical schemes of acousto-optical imaging spectrometers for various purposes are studied. Aim of study. The aim is to create a unified optical scheme that functions effectively with both single and double acousto-optical monochromators without compromising image quality. Method. The proposed method for designing optical schemes of acousto-optical imaging spectrometers involves two stages: the formation of special multiconfiguration and optimization parameters in the computer-aided design of optical schemes for calculating the optical scheme and spatial-spectral calibration of the completed acousto-optical imaging spectrometer. Main results. A compact, reconfigurable imaging spectrometer for the visible spectrum range with an acousto-optical monochromator in parallel beams of aperture rays is proposed. This device features a unified optical scheme that is compatible with both single and double acousto-optical monochromators. The stages of designing the acousto-optical imaging spectrometer are described, and the features of calculating the unified optical scheme are discussed. Furthermore, the calculated unified optical scheme is analyzed. The image quality of the optical scheme is estimated for two configurations. The configurations of the unified optical scheme with double and single monochromatization are compared. The single acousto-optical monochromator could operate in an enlarged angular field of view with a preliminary specialized spatial-spectral calibration. In addition, the features of these configurations of the acousto-optical imaging spectrometer and the possibility of their application in the implementation of spectral instruments for solving various applied problems are discussed. Practical significance. The results of this study can be used in the design of unified optical schemes suitable for use with both single and double acousto-optic monochromators without reducing the image quality.
Poliakov et al. (Wed,) studied this question.