Wireless Virtual Reality System
Head-mounted displays offer the potential for the realization of large-volume, immersive, virtual environments. However, there are several impediments that have limited the success of large-volume simulations. Among these are constraints imposed by the tethered electrical connections to the head-mounted display and the ability (or inability) to perform six-degree-of-freedom tracking throughout the desired simulation space.
HMD with LSA's prototype transceiver.
LSA has developed a system that specifically addresses these impediments. The system provides a wireless, wideband, dual-channel video and audio communication link to a mobile virtual-reality user with a head-mounted display. Video and audio transmission are accomplished using free-space optical communication, while wide-area tracking is realized using a combination of inertial and optical sensors. The user-worn equipment consists of a belt pack and a head-mounted display equipped with an optical transceiver module. The remaining communication and tracking components are mounted on a gimbal. The current system supports a simulation space of approximately 300 square feet, and it is expandable to larger areas.
Gimbaled laser-transmitter and tracking optics.
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