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New augmented reality head mounted display offers unrivaled viewing experience

Date:
September 23, 2019
Source:
University of Cambridge
Summary:
Engineers have developed a new augmented reality (AR) head-mounted display (HMD) that delivers a realistic 3D viewing experience, without the commonly associated side effects of nausea or eyestrain.
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Cambridge engineers have developed a new augmented reality (AR) head-mounted display (HMD) that delivers a realistic 3D viewing experience, without the commonly associated side effects of nausea or eyestrain.

The device has an enlarged eye-box that is scalable and an increased field of view of 36º that is designed for a comfortable viewing experience. It displays images on the retina using pixel beam scanning which ensures the image stays in focus regardless of the distance that the user is fixating on. Details are reported in the journal Research.

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.

The results of a subjective user study conducted with more than 50 participants aged between 16 and 601 showed the 3D effect to be 'very convincing' for objects from 20 cm to 10 m; the images and videos to be of 'vivid colour' and high contrast with no observable pixels; and crucially, none of the participants reported any eyestrain or nausea, even after prolonged periods of usage over a few hours or even all day.

The HMD is of high brightness and suited to a wide range of indoor and outdoor uses. Further research is progressing on exploring its potential use in areas of different applications such as training, CAD (computer-aided design) development, hospitality, data manipulation, outdoor sport, defence applications and construction, as well as miniaturising the current head-mounted prototype to a glasses-based format.

Professor Daping Chu, Director of the Centre for Photonic Devices and Sensors and Director of CAPE, who led the study, said: "Our research offers up a wearable AR experience that rivals the market leaders thanks to its comfortable 3D viewing which causes no nausea or eyestrain to the user. It can deliver high-quality clear images directly on the retina, even if the user is wearing glasses. This can help the user to see displayed real-world and virtual objects clearly in an immersive environment, regardless of the quality of the user's vision."


Story Source:

Materials provided by University of Cambridge. The original story is licensed under a Creative Commons License. Note: Content may be edited for style and length.


Journal Reference:

  1. Pawan K. Shrestha, Matt J. Pryn, Jia Jia, Jhen-Si Chen, Hector Navarro Fructuoso, Atanas Boev, Qing Zhang, Daping Chu. Accommodation-Free Head Mounted Display with Comfortable 3D Perception and an Enlarged Eye-box. Research, 2019; 2019: 1 DOI: 10.34133/2019/9273723

Cite This Page:

University of Cambridge. "New augmented reality head mounted display offers unrivaled viewing experience." ScienceDaily. ScienceDaily, 23 September 2019. <www.sciencedaily.com/releases/2019/09/190923130933.htm>.
University of Cambridge. (2019, September 23). New augmented reality head mounted display offers unrivaled viewing experience. ScienceDaily. Retrieved March 28, 2024 from www.sciencedaily.com/releases/2019/09/190923130933.htm
University of Cambridge. "New augmented reality head mounted display offers unrivaled viewing experience." ScienceDaily. www.sciencedaily.com/releases/2019/09/190923130933.htm (accessed March 28, 2024).

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