10/21/09 — New strategic investors signal the importance of 3-D natural interfaces to the future of PCs and other consumer devices. A provider of mass-market 3-D image sensors, Canesta, Inc. announced it has raised $16 million in additional capitalization. Joining returning investors Carlyle Growth Partners, Hotung Venture Group, and Venrock are two new strategic investors — Quanta Computer Inc. (2382.TW), the world’s largest manufacturer of notebook computers, and SMSC (NASDAQ: SMSC), a leading provider of smart mixed-signal connectivity solutions. Canesta has invented a family of tiny CMOS 3-D “camera” chips that can provide a real-time, 3-D “depth map” of the surrounding area…