Partially coherent holographic display based on human factors engineering

摘要

Partially coherent light source has been used in holographic display due to less speckle noise and lower cost. Different from laser, it has a low temporal and spatial coherence. The reconstructed image would be blurred by the illumination properties such as size, wavelength bandwidth and divergence angle range of partially coherent light source. However, due to the limitation of the pupil diameter and the human eye's sensitive wavelength, the blur of the reconstructed image cannot be recognized within a confined limit. The mathematical model of diffraction intensity distribution for holographic display is derived. The relationship between the illumination properties of partially coherent light source and the reconstruction results is simulated. The results suggest a criterion for the maximum size, wavelength bandwidth and divergence angle range.