Google glasses have caused a series of disputes concerning personal privacy since they came out. The reason is the Google glasses equipped with cameras enable users easily record what they saw, while without neither video warning lights nor shutter sound. Many people worry that they will be getting photographed.

In order to meet the new requirements of protecting personal privacy, Japanese Institute of Informatics developed a new technology. As long as you wear the glasses releasing a special light, you can prevent your face from being recognized by the camera.

After the release of Google glasses, the matched facial recognition software emerged in endlessly. The pair of glasses equipped with eleven LED bulbs, form a facial recognition corner on the wearer's face. Researchers are developing a kind of reflective material that performs the same efficacy without power usage.