A trial of the equipment involving 50 participants aged between 16 and 60 showed that the visual effect was “very convincing” for objects from 20cm to 10m.
None of the participants reported any eyestrain or nausea associated with using the headset.
See the full story here: https://www.aop.org.uk/ot/science-and-vision/technology/2019/09/30/researchers-develop-an-augmented-reality-headset-that-minimises-eyestrain
Developed by researchers at the Centre for Advanced Photonics and Electronics (CAPE) in collaboration with Huawei European Research Centre, in Munich, the HMD uses partially reflective beam splitters to form an additional ‘exit pupil’ (a virtual opening through which light travels). This, together with narrow pixel beams that travel parallel to each other, and which do not disperse in other directions, produces a high-quality image that remains unaffected by changes in eye focus.
See this full story here: https://www.cam.ac.uk/research/news/new-augmented-reality-head-mounted-display-offers-unrivalled-viewing-experience