MIT developed a new encoding solution which is called “Bokode” to provide visual information. 

Bokode is a 3mm-diameter tag and encodes data in the angular dimension. Currently Bokodes consist of an LED, covered with a tiny mask and a lens. Information is encoded in the light shining through the mask, which varies in brightness depending on which angle it is seen from.

Comparing to barcode or QR code, Bokode are smaller, can be read from different angles and can be interrogated from far away by a standard mobile phone camera. In addition, this code system is readable from a large distance. So far, barcode can be read from a distance of up to 4m.

The prototype devices produced at the Media Lab currently cost about $5 each. In the future, the cost could easily drop to 5 cents once they are produced even in volumes of a few hundred units.

I think Bokode has several advantages.

For company, they can save cost on printing DM, sending catalog to their customers. Just give them a Bokode as a simple website link. Or maybe the Bokode can be an identify tool. Such as a copyright laser sticker on Disney goods.

For users, they don’t have to carry hot copies. I can image, when I go traveling, I just keep my e-flight ticket , train time table, hotel booking information in several Bokodes on a small post-it and use camera(with wifi will be perfect) to read information. In stead of bringing guide book, a lot of A4 papers. 

Source: MIT