Assembly for multiplexing and / or demultiplexing optical signals

Assembly for multiplexing and / or demultiplexing optical signals, comprising: - a first optical imaging system on one or a plurality of light beams each of an optical channel in the module decouples, - a second imaging optical system that turns a light beam of a plurality of optical channels in the module, or decouples, - at least one wavelength-selective filter (Fi) on or for multiplexing or demultiplexing to the module coupled-out optical signals, light beams adjustable at a certain angle of incidence on at least one with respect to this incident angle, meet wavelength selective filter (Fi), while light beams of at least one optical channel of are the light rays of other optical channels separately or together with these, - at least one with respect to the angle of incidence of the incident light beams individually tiltable optical element (S, Fi), reflected by the wavelength selective filter (Fi) light beams in the direction of a lens (L) of the optical imaging systems, or in the direction of a further wavelength-selective filter ...