Microsoft vs Competition: 2-1

After showing off the surface some years ago (and the sphere a few months ago, see earlier post in this blog) competitors have reacted by several types of multi touch tables. Not sure but I think the way open source and other projects around multi touch showed up may have pushed Microsoft to bring the surface to the market after all or at least faster than they would have planned.

Surface, the next itteration is called SecondLight

But now there is a new great piece of work delivered by Microsoft Research in Cambridge - SecondLight. The new table projects an image through the table itself, so that any translucent material (such as tracing paper or perspex) held above the Surface screen displays a different image to what you see on the table's display.



This means you can have a satellite image of a town on the table, and have the street names projected on to a piece of paper that the user holds above the map. Or you could have a photo of a car, with the tracing paper displaying images of its innards as you pan the paper across the screen. Microsoft described the technology as a "magic lens".

How it works

SecondLight works by projecting two different images from beneath the table. The table surface itself is formed of a liquid crystal display that switches between frosted and transparent states when electrical voltage is passed through it.

By rapidly flicking the screen between the two states, the table appears as permanently diffuse, displaying an image like an ordinary Surface table.

The screen is, in fact, transparent for half the time. And during these periods then second image is beamed on to the paper, confusing the eye into believing it's seeing two images simultaneously.
Using an infrared camera, the secondary "display" can also be used as a multitouch surface. What's more, it can display video.

Microsoft gave no indication of when SecondLight will be ready for commercial release, but judging by the interest in the ordinary Surface tables, it shouldn't keep this one locked in the labs for long.