| dc.description.abstract | This is proposes a method for creating optical waveguides using volume holographic optical elements combined with waveguide technology to realize light field technology. The light field, through an array of lenses, ensures that each region contains different optical information, ultimately producing images with three-dimensional information. This can solve the current visual convergence-accommodation conflict issue in head-mounted displays.
In the creation of optical waveguides, volume holographic optical elements, with their angle selectivity characteristics, replace each sub-lens in the lens array, extracting different perspectives of the image. Additionally, holographic lenses are designed to magnify the viewing angles, addressing the insufficient viewing angles in commercial near-eye displays.
During the experiments, lateral and longitudinal sub-lens arrays were created, and simulations were conducted using phase superposition to meet the Bragg conditions for the viewing angles extracted by each sub-lens. The experimental results demonstrated that sub-lenses made with volume holographic optical elements can extract different sub-images, with a viewing angle difference of 2.79 degrees between sub-images, and the viewing angles of sub-images are magnified by a factor of 2.2 to 2.3. | en_US |