HOLOGRAPHIC RECONSTRUCTION SYSTEM WITH OPTICAL WAVE TRACKING MEANS

摘要

A holographic projection system has an optical wave tracking system which adjusts the propagation direction of a modulated wavefront. It is the object of the invention to provide an adjustable wave tracking system which aligns the modulated wave with a desired eye position of one or more observers and follows the movements of the observer. The reconstruction system comprises spatial light modulation means which modulate a wave with holographic information for the purpose of holographic reconstruction. In the reconstruction system, the optical wave tracking provides the light path of the modulated wave with a desired propagation direction which guides the modulated wave out of the reconstruction system via a light exit position of a display screen. According to the invention, position control means (CU) set adjustable tracking mirror means (M1) in terms of their inclination to a reflection direction (DA) for reflecting the modulated wave (LWmod) and deflection means (M2), which are located in the set reflection direction (DA), reflect the wave via the display screen (S) into the desired propagation direction (DB).