3D without glasses

New technology developed by Jonathan Post, allows you to play a three-dimensional image without the use of special glasses. This system works for monitors with a sweep rate of 120 Hz. It simulates the work of the technology of shutter separation glasses (3D Active Shutter Glasses), which is used, for example, in NVIDIA GeForce 3D Vision and other high-end technologies to form a 3D image. The final demonstration will be presented at CES 2012, but a video is already available in which the creator briefly describes his invention. The technology is based on the use of electrodes that cause contraction of the muscles responsible for blinking - that is, the eyes themselves play the role of glasses, alternately closing with great frequency. Now it is difficult to say how safe and effective it is, but this technology has at least one plus point - it frees you from using special glasses, which are not always convenient.