Abstract
A novel full-color autostereoscopic three-dimensional (3D) display system has been developed using color-dispersion-compensated (CDC) synthetic phase holograms (SPHs) on a phase-type spatial light modulator. To design the CDC phase holograms, we used a modified iterative Fourier transform algorithm with scaling constants and phase quantization level constraints. We obtained a high diffraction efficiency (~90.04%), a large signal-to-noise ratio (~9.57dB), and a low reconstruction error (~0.0011) from our simulation results. Each optimized phase hologram was synthesized with each CDC directional hologram for red, green, and blue wavelengths for full-color autostereoscopic 3D display. The CDC SPHs were composed and modulated by only one phase-type spatial light modulator. We have demonstrated experimentally that the designed CDC SPHs are able to generate full-color autostereoscopic 3D images and video frames very well, without any use of glasses.
Highlights
Real-time full-color autostereoscopic three-dimensional (3D) display systems, such as integral imaging [1,2], holographic stereography [3,4], partial pixel structures [5], and micro mirror array architecture [6] have been developed and are of interest
When reconstructed with the recording wavelengths, the hologram produces overlapping images in three colors producing a multicolor image. While this has been achieved with various degrees of success, full-color holography is still regarded as being very difficult, due to a number of constraints on the lasers, photo material, and hologram types used, the difficulty of achieving color fidelity, and the low light efficiencies involved
For the first time to our knowledge, we propose and implement a dynamic autostereoscopic 3D display system using color-dispersion-compensated (CDC) synthetic phase holograms (SPHs) implemented with only one phase-type SLM
Summary
Real-time full-color autostereoscopic three-dimensional (3D) display systems, such as integral imaging [1,2], holographic stereography [3,4], partial pixel structures [5], and micro mirror array architecture [6] have been developed and are of interest. We proposed and implemented an SPH for an autostereoscopic 3D display system using a modified iterative Fourier transform algorithm (IFTA) [7] This was a monochromatic hologram, because it had difficulty in achieving a full-color image due to the color dispersion characteristics resulting from the wavelength differences of the illumination sources. For the first time to our knowledge, we propose and implement a dynamic autostereoscopic 3D display system using color-dispersion-compensated (CDC) SPHs implemented with only one phase-type SLM This can be integrated using only an SLM, three laser sources, and a projection lens module, and it has advantages in costeffectiveness, a high light source utilization efficiency, and controllable color fidelity without the use of any color filters
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