With the research and development of Aladdin Bi, the reference model of AR glasses developed by Lingxi Microlight, at the exhibition site of the 2022 World Robot Conference, the “brain-controlled wheelchair” jointly developed by Lingxi Microlight and the Neuroengineering Laboratory of Tsinghua University School of Medicine has become a major The highlights have attracted many exhibitors and media attention.

The “brain-controlled wheelchair” looks like a wheelchair, but it is full of technology. Brain-computer interface (BCI) technology based on steady-state visual evoked potentials can encode human brain waves into computer instructions that robots can recognize, so as to achieve the purpose of controlling robots with ideas.

In order to achieve the purpose of reading brain waves to control the equipment, the Neuroengineering Laboratory of Tsinghua University School of Medicine and Beijing Lingxi Weiguang Technology Co., Ltd. The Aladdin Bi, a new AR optical waveguide reference model independently developed by Lingxi Microlight, was adopted.

By wearing AR glasses and EEG acquisition equipment on the head, the experiencer can easily obtain location information, identify the surrounding environment and direction, control the brain-controlled wheelchair, and realize human-computer interaction. This will bring good news for disabled people to use brain-controlled wheelchairs instead of walking on their feet and realize brain-controlled driving.

Aladdin Bi adopts the self-developed array optical waveguide display technology of Lingxi Microlight, with a weight of only 50g; a pair of AW70Pro optical display engines are built-in, with a resolution of 1280×720; the mirror body is designed with a titanium alloy frame, which has the characteristics of strong toughness and no damage. It is worth mentioning that at the beginning of the design, Aladdin Bi took into account the deformation of the waveguide sheet when people with different head types wear it, so a high-elastic stainless steel bow beam design was added to the structure, and a neck-mounted split was added. design.

The above design concepts can create an Aladdin Bi that is suitable for all-weather wear and has strong adaptability. The integration with the brain-computer interface system of the Neuroengineering Laboratory of Tsinghua University School of Medicine has solved the interactive problem of “brain-controlled wheelchair” in visual display, and provided the industry with a benchmark for AR glasses solution reference.

The birth of Aladdin Bi means that Lingxi Microlight has entered a new stage of development with its 8-year accumulation of optical waveguide technology research and development.

As one of the few owners of the core optical waveguide technology in the world, Lingxi Shimmer is gradually bringing thin and light AR glasses from movie clips to real life by enabling the industry through technology. Up to now, Lingxi Microlight has broken through a number of production process problems in the field of optical waveguides. In addition to catching up with the world level in terms of display effect, it has also achieved light weight earlier in China. The yield rate of array optical waveguide modules has exceeded 85%, with an annual output of 10 With a mass production capacity of 10,000 pieces, the products have been used in professional fields such as education, medical care, security, industrial inspection, military and special industries.

At the 2022 World Robot Conference, Lingxi Weiguang cooperated with the Neuroengineering Laboratory of Tsinghua University School of Medicine by virtue of its own integrated and comprehensive service capabilities including core display technology, hardware product customized development, and industry application solutions. Create a win-win situation and accelerate the leap-forward development of ecological partners. Through school-enterprise cooperation, help create a partner ecosystem of Lingxi Weiguang University.

In the future, Lingxi Weiguang will actively cooperate with more mid-stream and downstream enterprises to help enterprises solve problems related to AR visual presentation, vigorously promote optical waveguide technology, and actively promote the faster popularization of AR glasses in the consumer market, providing biomedical, artificial intelligence, education, etc. , industry and other walks of life to provide more high-quality solutions.

Reviewing Editor: Peng Jing

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