Abstract: The invention relates to a display device for representing three-dimensional scenes. The display device comprises at least one illumination device, at least one spatial light modulation device and at least one Bragg polarization grating. The Bragg polarization grating comprises at least one birefringent layer, incident light being deflectable at a deflection angle of at least 20°.

Abstract: An apparatus for the reconstruction of computer-generated video holograms has the object of reconstructing bandwidth-limited holograms with high luminance and image quality in a display having low installation depth, low weight, and reduced effort during production. The apparatus has a focal center field having diffractive optical elements, which conduct coherent light after modulation by a light modulator matrix, which is coded using a video hologram, to an eye position, wherein said light reconstructs a three-dimensional scene in the space spanned by the viewing window and said light modulator.

Abstract: An imaging apparatus for influencing impinging light comprising an optical element and an actuator for deforming the optical element is proposed. The optical element has a surface facing the impinging light and the actuator (3) has at least one piezoelectric element. In this case, the piezoelectric element is able to be driven by means of a control device. Moreover, the piezoelectric element is fitted to a rear surface and/or to that surface of the optical element which faces the impinging light. The optical element is borne by means of at least one such bearing element that has direction-dependent compliances for in each case at least one degree of freedom of rotation and/or degree of freedom of displacement, such that it is possible to achieve a substantially longitudinal-force-free bending with a substantially fixed overall position of the optical element.