1 results about "Liquid crystal tunable filter" patented technology

This invention discloses a multispectral imaging method and system based on precision micro-scanning and active spectral modulation. The system includes: a host computer module for sending commands to synchronously control spectral switching and micro-displacement of the image sensor, and for receiving acquired multispectral data; a spectral image acquisition module, consisting of an industrial telecentric lens, a liquid crystal tunable filter, an image sensor, and a precision micro-scanning stage, which acquires image sequences with sub-pixel displacement in specific spectral bands according to commands; and a spectral image reconstruction module that uses a super-resolution algorithm driven by both physics and data to process the image sequences in each band and generate a high-fidelity multispectral image cube. This invention, by integrating active spectral modulation and sub-pixel displacement technologies, solves the problem of simultaneously achieving high spectral dimension, high resolution, and high geometric fidelity in multispectral imaging, providing a solution for semiconductor detection, biomedicine, and other fields that combines ultra-high spatial detail with accurate spectral information.