Light activated position sensing array for persons with disabilities
F. Breau, B. Marsden, James McCluskey, Robert Ellwood, James T. Lewis, T. Johnson, Ying Sun, Musa K. Jouaneh, Robert A. Comerford · 2004
The light activated position sensing array will bring great independence to many persons with disabilities. Enabling those that have limited to no use of their limbs, this product will allow its user to perform many day to day activities that may have not otherwise been possible without outside assistance. The system is a hands-free electric wheelchair control that will also function as a powerful environmental control tool. Guided by a light emitter worn on the user's head, it will replace orally activated (sip and puff) switches, as well as any other switches that may be mounted on or near the user's head.