Researchers have created a spectacle lens equipped with a system to capture the eyes of the person wearing it. In this way, the user may receive visual information transmitted on the screen, regardless of the point to which his gaze is.

The Fraunhofer Institute for Photonic Microsystems (Fraunhofer IPMS) has pioneered a prototype of a circuit equipped with light sensors and photodiodes. Researchers at the institute announced the project during the conference organized by the Society for Information Display, which took place in San Antonio, Texas.

The screen that was presented at this conference is only 1.25 cm. It brings 320 x 240 x 320 photodiodes and 240 light sensors. The chip used by the device can measures about a few millimeters (19.3 x 17).

For the broadcast image to be visible despite changes in ambient light, the researchers turned to the use of OLED (Organic Light-Emitting Diodes). If such circuits are used, particularly in aviation, their cost remains high. They are also very complex and present only a limited ergonomics.

By integrating it into glasses of a pair of glasses, this system would make it possible to send visual informations directly to that which carries them. In this way, the circuit can track the gaze of the person gives it nothing to lose what is broadcast, regardless of the place where he looks at the screen.

Researchers from the IPMS have already announced that the marketing of their circuit could be under consideration by 2011. However, initially, its use will be primarily medical.