A novel design of a video see-through super multi-view near-eye display (VST-SMV-NED) with a waveguide-type light source (WLS) and a ferroelectric liquid crystal on silicon (FLCoS) is proposed. The proposed method presents three-dimensional (3D) scenes by projecting the SMV images of deep depth of field into the eye pupil. A temporal multiplexing scheme is adopted to deliver the SMV images within an eye integration time (>30Hz), allowing flicker-free 3D image presentation. Real-world stereo images are captured by a stereo camera and transformed into SMV images. The SMV images of virtual digital images and real-world scenes are merged into augmented reality (AR) SMV scenes, creating VST type 3D AR scene. We experimentally demonstrated the feasibility of the proposed method by displaying VR SMV images on the FLCoS with the WLS illumination.
In this paper, we introduce a novel holographic foveated near-eye display, leveraging the capabilities of two reflective-type phase-modulating spatial light modulators (SLMs). Reconstructed holographic three-dimensional images are imaged with different magnifications by polarization optics, creating a peripheral and foveal holographic three-dimensional image. The core element of the proposed system is a geometric phase (GP) lens, having different optical power based on the circular polarization state of the incident light. The proposed optical system has a compact form factor because the GP lens has only a millimeter thickness and two SLMs can be placed very close to the polarizing beam splitter.
We introduce our recent works to remove the discrepancy between the perceived distance and optical distance of the images in optical-see-through (OST) augmented-reality (AR) near-to-eye displays (NEDs). The first one is a thin Maxwellian display which is implemented using a waveguide and a pin-mirror array holographic optical element (HOE) coupler. A dual-image-layer AR NED implemented using a polarization grating and a single physical waveguide is also introduced in the presentation. Our recent implementations of light field AR NED which uses a micro lens array to present 3D images, and holographic 3D AR NED are also introduced with experimental results.
We introduce our recent work on the occlusion-capable near-to-eye display. Our implementation uses only a single digital micromirror device (DMD) both for the real scene masking and virtual image display. The real scene imaging onto the DMD and the mixed scene projection toward the eye are achieved using a single optics of polarization-based double-path configuration. These single DMD and the shared optics feature contributes to the reduction of the overall system volume. In the presentation, we explain the principle and introduces our recent experimental results demonstrating 60Hz display of color virtual images with per-pixel occlusion in over 90% maximum occlusion ratio.
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