Microsoft Adds SecondLight to its ‘Surface’
Over the past couple of years, gadgets have become much more touchy-feely. Apple’s iPhone and Microsoft’s Surface (an interactive table) are two of the most celebrated examples. Now, Microsoft has added a twist to Surface that makes for an impressive demo.
Microsoft announced the upgrade to Surface, called SecondLight, at the company’s Professional Developers Conference in Los Angeles on Wednesday. As the video above demonstrates, in this new version of Surface, a secondary image is projected above the main display. A person views the second image by holding a semi-opaque object, such as a piece of paper above the display. The idea is to provide a second layer of information: labeled constellations on top of photographs of stars or street names on top of maps, for instance.
SecondLight uses a neat trick to produce this second layer. The original Surface used a projector below a glass tabletop to create an image and infrared cameras underneath to detect fingers and objects in contact with the surface. With SecondLight, Microsoft has replaced the glass top with a liquid crystal display (LCD), but kept the projector underneath. The LCD flickers on an off and, during alternate frames the projector sends the secondary image through the display. This happens too fast for your eyes to catch it unless you hold up an opaque object, like a piece of paper.
Keep Reading
Most Popular

Why China is still obsessed with disinfecting everything
Most public health bodies dealing with covid have long since moved on from the idea of surface transmission. China’s didn’t—and that helps it control the narrative about the disease’s origins and danger.

These materials were meant to revolutionize the solar industry. Why hasn’t it happened?
Perovskites are promising, but real-world conditions have held them back.

Anti-aging drugs are being tested as a way to treat covid
Drugs that rejuvenate our immune systems and make us biologically younger could help protect us from the disease’s worst effects.

A quick guide to the most important AI law you’ve never heard of
The European Union is planning new legislation aimed at curbing the worst harms associated with artificial intelligence.
Stay connected

Get the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.