| 摘要 |
<p>The invention relates to a multispectral imaging device for satellite observation by so-called "push-broom" scanning of an observed zone, operating in N wavelength bands, respectively centred on a first wavelength (?1),..., an n-th wavelength (?N) comprising: - a source emitting a light beam in a set of N wavelength bands; - a wide-field optic; - a set of N rows of detectors making it possible to acquire images of said observed zone; - optical filtering means, characterized in that it furthermore comprises: - a first dispersion element (R1,R) making it possible to diffract the light beam towards the filtering means; the optical filtering means comprising at least one micro-opto-electronic system (MOEMS) capable of carrying out N filtering functions for the N spectral bands, wavelength tunable; - control means for said micro-opto-electronic system making it possible to select the filtering function.</p> |
