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Tears May Soon Power Mixed Reality Contact Lenses
Researchers from Nanyang Technological University (Singapore) have made a significant breakthrough in developing mixed reality contact lenses. They have successfully embedded a miniaturized battery within a specialized contact lens that is only 0.5 mm thick, with the battery itself occupying just 0.2 mm around the periphery.
Beyond the marvel of such miniaturization, the researchers' invention boasts several ingenious features. The battery can be charged in three distinct ways: through the conventional method of plugging it into a power source, chemically recharging it within a biocompatible saline solution (achieving an 80% charge after eight hours of immersion), and via an innovative electrochemical process that harnesses the glucose present in human tears.
While the current voltage range of 0.3V to 0.6V may seem insufficient for fully-fledged mixed reality contact lenses, this breakthrough paves the way for developing unprecedented interfaces with virtual realms. These interfaces could allow access to real-time information and seamless integration with computers, smartphones, and next-generation AI assistants.
In our contemporary world, where technological advancements are occurring at a dizzying pace, the boundary between science fiction and tangible reality grows increasingly blurred. Amidst the fervent discussions surrounding artificial intelligence (AI) and its strategic importance, mixed reality (MR) and virtual reality (VR) are heralded as the future of computing, gaming, technical guides, and inventory management, among other applications.
Companies like Microsoft (HoloLens), Meta (Quest), and Sony (PSVR 2) have unveiled increasingly sophisticated headsets. Apple's recently unveiled Vision Pro exemplifies a highly refined MR interface and ergonomic design. However, significant hurdles remain before these products can truly revolutionize mixed reality experiences, including their weight, heat generation, bulkiness, and disconnection from the external world.
Moreover, their battery capacities often fall short, limiting their usefulness (although the relatively uncomfortable experience may render the typical two-hour battery life sufficient). Superimposing an interface directly onto contact lenses presents an alluring alternative for such technologies, especially if the challenges of powering these devices can be adequately addressed.
Nevertheless, numerous additional advancements are required to fully realize the concept. These include the development of other miniaturized components essential for mixed reality, such as MEMS chips for positioning, environmental video sensors, and wireless communication with a central processing unit handling the bulk of the workload.
As concerns mount regarding the risks associated with the advent of Artificial General Intelligence (AGI), a truly universal, generative, and self-learning artificial intelligence, there is a certain irony in the notion that our tears may one day literally power the display of choice for these advanced systems.