Method and device for changing light in an adjustable manner

Device usable for changing at least one of the illumination light and the specimen light of a microscope with respect to at least one of its spectral composition and intensity, and for separating the illumination light from the specimen light, comprising:

• first polarization means for spatially separating at least one of the illumination light and the specimen light of the microscope into radiation components of different polarization directions,
• first dispersion means for spectrally spatially splitting at least one radiation component downstream of the first polarization means, and for re-combining the at least one spectrally spatially split radiation component in an upstream direction,
• imaging optics for imaging the at least one spectrally spatially split radiation component from the first dispersion means onto a focal plane,
• means at the focal plane for changing the polarization direction of at least one part of the at least one spectrally spatially split radiation component, and
• tiltable reflection means for spatially shifting the radiation component having a changed polarization direction and reflecting it back through the imaging optics so that a variety of polarization directions reach different spots of the first dispersion means.