From Popgadget via Boing Boing

This is straight out of a science fiction movie, but if they can actually make it come true, it may be extremely useful. This Fukuda’s Automatic Door fits like a glove, and opens just enough to fit the exact shape of the person or the object that’s passing through. Its motion-detecting portal saves energy by keeping a door from having to open and close all the way, which helps to maintain a stable temperature in a room, and can prevent dirt or other materials from entering. In addition to people, this sci-fi door can be used to accommodate objects large and small, like packages dropped off at a post office, or even a car coming through a garage door. And, it will be most useful for people who are handicapped or can’t manage to open and close the doors very easily.

It’s still in prototype mode right now in Japan. You can check it out at e-taf.com.jp , but it’s in Japanese only.