Small-Sized Acousto-Optic Imaging Spectrometer

The paper presents a small-sized acousto-optic imaging spectrometer. The imaging spectrometer operates in the Vis-NIR spectral ranges $(0.45-0.85 \mu \mathrm{m})$. Its optical and technical characteristics are presented, and design features are described. The developed imaging spectrometer has high image quality and acceptable aperture ratio, which are sufficient for most applications in scientific research. A method for correcting the recorded spectral characteristics depending on changes in the illumination of the investigating objects is proposed. This technique is based on the use of a graduation spectrometer and digital processing of hyperspectral data in real time. An example of using a small-sized acousto-optic imaging spectrometer in the branch of agriculture is demonstrated.