Super contact lens electronic circuit LED light integrated

CNET News.com September 27 International Report Traditionally, the use of contact lenses is to give normal or near-normal vision to people with poor eyesight, but why not let them have "super vision"? Why not use the hologram to put the driving control panel in the contact lens for the driver to wear? Or through contact lenses to allow people to move while surfing the Internet? Or provide the gamer with a virtual world that covers the entire range of vision, not just on the LCD screen?

Engineering scholars are developing contact lenses for printing on circuits and LED lights

Engineering scholars at the University of Washington also asked the same question when making the first generation of bionic eyes in the form of contact lenses. The contact lenses that promote biological functions have electronic circuits and LED lights.

Babak A. Parviz, an assistant professor at the University of Washington, led an interdisciplinary research team specializing in contact lens electronics. He wrote in the Spectrum magazine published by the Institute of Electrical and Electronics Engineers (IEEE) in September 2009: "Traditional contact lenses are To make the lens a specific shape to correct vision, in order to turn the glasses into a functional system, we use custom optical electronic components to integrate control, communication circuits and micro-antennas into contact lenses. These parts will eventually contain hundreds of LED lights that will form images in front of the eyes, such as text, graphics, and photos. Another device may be responsible for communicating information to the control circuitry on the glasses, which will be responsible for operating the glasses. Optical electronic components, but Parviz emphasizes that these contact lenses do not need to be complicated to achieve practical results: even a one-pixel contact lens can help the hearing impaired, or combined with computer games to become an indicator. As the color and resolution increase, you can further change to display text content and instantly turn the speech into a text word. Screens, or devices that provide visual clues to navigation systems. With basic image processing and network connectivity, contact lenses will open up a new world of virtual information, free from the shackles of physical displays.

During the test, the rabbits wore contact lenses with metal circuits for 20 minutes without adverse reactions.

Parviz's team still has some obstacles to overcome. For example, the key parts of the glasses must be downsized and integrated into a 1.5 square centimeter polymer. They are not able to do this yet, but they have come up with a "special assembly procedure." ", you can integrate several different parts into one contact lens.

Another problem is the safety issue. Red LEDs are typically made of toxic aluminum gallium arsenide. To keep contact lenses safe, toxic substances must be completely covered in substances that do not cause bio-rejection.

Parviz mentioned: "Our first eyeglass model was loaded with LEDs, a small radio chip and an antenna. We wirelessly transmitted energy into the glasses to make the LEDs bright." Then they used bio-environment Capacitive polymer-encapsulated contact lenses, which were tested with rabbits, did not show adverse reactions, but the rabbits only wore them for 20 minutes.

Parviz doesn't mention when these glasses are available for human use, or what they will do first when they come out, but he hopes that, like the iPhone (iPhone Player Forum) app, these glasses are available from around the world. Program developers and smart engineers get endless development.

The human eye may soon not only play the window of the soul, but also the window of the circuit system.

Article source: Sohu IT