Chinese Optics Letters, 2013, 11 (3): 031201, Published Online: Feb. 24, 2013
Lightweight spatial-multiplexed dual focal-plane head-mounted display using two freeform prisms Download: 890次
120.2820 Heads-up displays 220.1250 Aspherics 220.3620 Lens system design 330.1400 Vision - binocular and stereopsis 330.7322 Visual optics, accommodation
Abstract
Accommodation and convergence play critical roles in the natural viewing of three-dimensional (3D) scenes, and these must be accurately matched to avoid visual fatigue. However, conventional stereoscopic head-mounted displays lack the ability to adjust accommodation cues. This is because they only have a single, fixed image plane, but the 3D virtual objects generated by a pair of stereoscopic images are displayed at different depths, either in front or behind the focal plane. Therefore, in order to view objects clearly, the eyes are forced to converge on those objects while maintaining accommodation fixed on the image plane. By employing freeform optical surfaces, we design a lightweight and wearable spatial-multiplexed dual focal-plane head-mounted display. This display can adjust the accommodation cue in accordance with the convergence cue as well as generate the retinal blur cue. The system has great potential applications in both scientific research and commercial market.
Dewen Cheng, Qingfeng Wang, Yongtian Wang, Guofan Jin. Lightweight spatial-multiplexed dual focal-plane head-mounted display using two freeform prisms[J]. Chinese Optics Letters, 2013, 11(3): 031201.