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Cell Phones: Pocket Projectors.

Newsweek International

| February 12, 2007 | Sutherland, Benjamin | COPYRIGHT 2007 Newsweek, Inc. All rights reserved. Any reuse, distribution or alteration without express written permission of Newsweek is prohibited. For permission: www.newsweek.com. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

Byline: Benjamin Sutherland

Viewing videos on postage-stamp-size mobile-phone displays can be an aggravating tease, but the imminent arrival of new laser technology, announced in January by two leading manufacturers, is set to change that as soon as next year.

Engineers are now playing with prototypes of microprojectors embedded in mobile phones, which shine images the size of TV screens onto walls. The feat requires red, green and blue lasers which, when combined, produce the full range of colors. High-performance, inexpensive red and blue lasers are already used in CD and DVD players, but researchers "skipped the green" for lack of a profitable mass-market application, says Harald Schenk, deputy director of IPMS Fraunhofer Institute in Dresden, Germany.

More powerful batteries and smaller, faster computer chips for mobile phones changed investors' minds. Laser makers like the Fraunhofer Institute are now receiving a flood of money to develop green lasers. Novalux, a laser maker in Sunnyvale, California, spent $50 million developing its high-precision green laser, which is used in the PicoP, a prototype microprojector built by Microvision of Bothell, Washington. It's slated for production next year; Novalux expects to recoup its investment by 2010. At the ...

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Source: HighBeam Research, Cell Phones: Pocket Projectors.