Development of a prototype for an acousto-optical stereoscopic imaging spectrometer

Subject of study. A device for stereoscopic visualization of objects in various spectral regions is studied. Aim of study. A prototype stereoscopic spectrometer based on a tunable acousto-optical filter is developed. Method. An ingenious symmetric design so that a single acousto-optical cell can act as a filter for two light beams (stereo pairs) is used to separate the beams in the azimuthal plane. Main results. The prototype was assembled on an experimental test bench using the following components: an acousto-optical filter, an optical train based on prisms and lenses, and a video camera with an objective lens. Several images of test objects were obtained to demonstrate the spectral sensitivity of the device. Practical significance. The stereo spectrometer prototype developed here, which is capable of simultaneously obtaining spatial and spectral information about an object, may be applicable to various problems in machine vision, including those involving a non-laboratory environment. (c) 2024 Optica Publishing Group