title: Compact see-through 3D head-mounted display based on wavefront modulation with holographic grating filter.
abstract: A compact see-through three-dimensional head-mounted display (3D-HMD) is proposed and investigated in this paper. Two phase holograms are analytically extracted from the object wavefront and uploaded on different zones of the spatial light modulator (SLM). A holographic grating is further used as the frequency filter to couple the separated holograms together for wavefront modulation. The developed preliminary prototype has a simple optical facility and a compact structure (133.8mm × 40.4mm × 35.4mm with a 47.7mm length viewing accessory). Optical experiments demonstrated that the proposed system can present 3D images to the human eye with full depth cues. Therefore, it is free of the accommodation-vergence conflict and visual fatigue problem. The dynamic display ability is also tested in the experiments, which provides a promising potential for the true 3D interactive display.
authors.forename: Qiankun
authors.initials: Q
authors.lastname: Gao
authors.forename: Juan
authors.initials: J
authors.lastname: Liu
authors.forename: Xinhui
authors.initials: X
authors.lastname: Duan
authors.forename: Tao
authors.initials: T
authors.lastname: Zhao
authors.forename: Xin
authors.initials: X
authors.lastname: Li
authors.forename: Peilin
authors.initials: P
authors.lastname: Liu