Abstract: A multispectral imaging device for satellite observation utilizing “push broom” scanning over an observed area centered on one or more wavelengths which can be electrically controlled to produce a filtering function wavelength band, thus obviating the need for conventional stacking.

Abstract: The invention relates to a multispectral imaging device for satellite observation by “push-broom” scanning over an observed area, operating in N wavelength bands, respectively centered on a first wavelength (?1), . . . , an nth wavelength (?N) comprising: a source emitting a light beam in a set of the N wavelength bands; a wide-field optic; a set of N rows of detectors making it possible to acquire images of said observed area; optical filtering means, characterized in that it also comprises: a first dispersion element (R1,R) making it possible to disperse the light beam toward the filtering means; optical filtering means comprising at least one micro-opto-electro-mechanical system (MOEMS) capable of carrying out N filtering functions for the N spectral bands, wavelength-tunable; control means for said micro-opto-electro-mechanical system making it possible to select the filtering function.

Abstract: An electro-optic device incorporating a waveguide includes a locating electrode formed on a plate for locating an electrical phenomenon in a waveguide carried by the plate. The electrode comprises two juxtaposed flat surfaces, namely a locating surface relatively close to the waveguide and which has a relatively high electrical resistivity and a connection surface relatively far from the waveguide and which has a relatively low electrical resistivity. This juxtaposition makes it possible to eliminate at least partially deformation and/or attenuation of the guided waves. Applications of the invention include the implementation of a polarization modulator.