Mr. Lingbo Xia Profile

Lingbo Xia

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Proceedings Article | 20 August 2013 Paper

A green-color portable waveguide eyewear display system

Lingbo Xia, Ke Xu, Zhengming Wu, Yingtian Hu, Zhenzhen Li, Yongtian Wang, Juan Liu

Proceedings Volume 8913, 89130W (2013) https://doi.org/10.1117/12.2034767

KEYWORDS: Waveguides, Eyewear, Displays, Holograms, Diffraction gratings, Diffraction, Head, Holography, Product engineering, Mobile devices

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Waveguide display systems are widely used in various display fields, especially in head mounted display. Comparing with the traditional head mounted display system, this device dramatically reduce the size and mass. However, there are still several fatal problems such as high scatting, the cumbersome design and chromatic aberration that should be solved. We designed and fabricated a monochromatic portable eyewear display system consist of a comfortable eyewear device and waveguide system with two holographic gratings located on the substrate symmetrically. We record the gratings on the photopolymer medium with high efficiency and wavelength sensitivity. The light emitting from the micro-display is diffracted by the grating and trapped in the glass substrate by total internal reflection. The relationship between the diffraction efficiency and exposure value is studied and analyzed, and we fabricated the gratings with appropriate diffraction efficiency in a optimization condition. To avoid the disturbance of the stray light, we optimize the waveguide system numerically and perform the optical experiments. With this system, people can both see through the waveguide to obtain the information outside and catch the information from the micro display. After considering the human body engineering and industrial production, we design the structure in a compact and portable way. It has the advantage of small-type configuration and economic acceptable. It is believe that this kind of planar waveguide system is a potentially replaceable choice for the portable devices in future mobile communications.

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