Wider viewing angle for holographic 3D display
Chinese Academy of SciencesAn ideal holographic 3D display should offer large viewing angle, full color, and low speckle noise. A new holographic 3D display system with a large viewing angle of 73.4° has been proposed. The system uses spatial light modulators (SLMs) and liquid crystal grating to achieve maximum diffraction modulation, which allows for a larger hologram size and a wider viewing angle. The proposed system has potential applications in education, culture, and entertainment.